Key idea: a thought is a mental event that may appear as a sentence, image, memory, doubt, judgement or prediction. Thoughts influence how we feel and behave, but they are not an exact copy of reality. Learning to relate to them more helpfully does not mean emptying the mind. It means recognising what is happening and choosing how to respond.
Understanding what thoughts are can help us develop a more flexible relationship with our minds. Thoughts may appear as words, images, memories, doubts or predictions, and they form part of everyday mental activity.
At times, the mind can feel like a tireless narrator. It comments on what we do, anticipates problems, revisits conversations, imagines scenarios and forms judgements about ourselves and other people.
Much of this activity is useful. Thinking allows us to plan, learn, create, remember, solve problems and prepare for what may happen next.
However, the same ability can become a source of distress when every idea is treated as fact, when we try to achieve impossible certainty or when we become caught in worry and repetitive mental review.
For that reason, learning how thoughts work is not merely an academic exercise. It can help us understand what is happening internally and respond with greater freedom.
What are thoughts?
Thoughts are mental contents and processes through which we represent, interpret and organise experience. They may help us understand a present situation, remember something that happened or imagine what could happen in the future.
Moreover, thoughts do not always appear as words. A person may think through images, scenes, memories, impressions or brief intuitions that are difficult to express.
Words and inner dialogue
“I am going to be late”, “that went well” or “perhaps I should call them” are examples of verbal thoughts.
Mental images
We can imagine a presentation, remember a face or picture a situation that has not yet happened.
Memories
A smell, place or conversation can bring back past experiences with different levels of emotional intensity.
Judgements and predictions
The mind evaluates what is happening and tries to predict consequences, although its conclusions are not always accurate.
In other words, thinking involves more than logical reasoning. It also includes imagining, associating, evaluating, remembering, anticipating, doubting and creating meaning.
A thought is not an exact photograph of reality
The mind does not record the world like a camera. It selects information, compares what is happening with previous experiences and fills in missing details.
This ability allows us to react quickly. At the same time, it can lead to rushed or incomplete interpretations.
Situation: someone important to you has not replied to a message for several hours.
Interpretation 1: “They are probably busy. They will reply when they can.”
Interpretation 2: “They must be annoyed with me.”
Interpretation 3: “I have said something wrong and I am going to lose the relationship.”
The observable fact is the same: a reply has not yet arrived. Nevertheless, each interpretation may produce very different emotions and behaviours.
The first interpretation may allow the person to continue with their day. The second may create unease. The third could lead to anxiety, repeated checking or several follow-up messages intended to obtain reassurance.
Where do thoughts come from?
Thoughts do not appear in a vacuum. They develop through several interacting influences.
- The information available at that moment.
- Previous experiences.
- What we have learnt within our family, education and social environment.
- Our expectations and beliefs.
- Our current emotional state.
- Physical sensations.
- Tiredness, stress and lack of sleep.
- The way other people respond to us.
For example, after several nights of poor sleep, a relatively small difficulty may feel far more threatening. Similarly, an earlier experience of rejection may make us especially alert to any sign of distance.
This does not mean emotions always mislead us. It means that thinking takes place within a personal history and a particular context.
A more complete view: we do not think with the mind in isolation. The body, environment, memories, relationships and emotional state all contribute to how we make sense of experience.
Types of thoughts in everyday life
Thoughts can be classified in many ways. In everyday life, it is often more useful to distinguish them according to how they appear and the function they may be serving.
Deliberate thoughts
These are thoughts we direct intentionally. They appear when we make a calculation, compare options, organise a journey or try to solve a problem.
Automatic thoughts
These arise quickly and without deliberate effort. They are often brief and may feel self-evident: “I cannot do this”, “they are angry”, “I am going to make a mistake” or “this is dangerous”.
Automatic thoughts are not always negative or inaccurate. Many help us respond efficiently. Difficulties arise when they become rigid, extreme or difficult to reconsider.
Worries
Worry is generally focused on the future. It links together questions beginning with “what if…?” in an attempt to anticipate risk.
A certain amount of worry can help us prepare. However, repeatedly considering every possible outcome does not guarantee that we will find a solution.
Rumination
Rumination tends to return repeatedly to the past, the causes of distress or questions that have no final answer.
“Why did I say that?”, “how could I have made that mistake?” or “what would have happened if I had acted differently?” are common examples.
This process may become stronger at bedtime, when there are fewer external distractions. Our guide on what to do when your mind will not switch off at night explains why this happens and which habits may unintentionally keep it going.
Intrusive thoughts
Intrusive thoughts are unwanted thoughts, images, doubts or mental impulses. They may feel strange, unpleasant or inconsistent with the person’s values.
The fact that something appears in the mind does not prove that it is true, that it will happen or that the person intends to act on it.
When intrusive thoughts are accompanied by repeated checking, rituals or a strong need for certainty, our guide on how to recognise possible OCD signs may help explain the pattern more clearly.
Thoughts, emotions, the body and behaviour: a circular relationship
It is common to explain that a thought causes an emotion and that the emotion then influences behaviour. In reality, human experience is more circular.
A thought may increase anxiety. Anxiety may then raise the heart rate and tense the body. When those sensations are noticed, the mind may interpret them as evidence that there is genuine danger. Finally, the person avoids the situation, which prevents them from discovering whether they could have managed it.
Situation: you need to speak in front of a group.
Thought: “My mind will go blank and everyone will notice how nervous I am.”
Emotion: fear and embarrassment.
Body: tension, warmth, faster breathing and palpitations.
Behaviour: avoiding the presentation, reading without looking up or speaking very quickly.
Consequence: avoiding or escaping the situation brings relief. However, the mind may learn that avoidance was necessary, allowing the fear to continue.
The relationship also works in the opposite direction. Sleep, nutrition, movement, social contact and gradually approaching situations can affect emotions and thoughts.
Consequently, psychological wellbeing cannot be reduced to replacing a negative sentence with a positive one.
Why do some thoughts feel completely true?
A thought may feel true for several reasons.
Firstly, it may appear very quickly. Because we do not notice the intermediate steps, the conclusion can feel direct and obvious.
Secondly, when an idea has been repeated for a long time, it becomes familiar. Familiarity can easily be confused with certainty.
Our emotional state also matters. When we feel frightened, we are more likely to interpret a situation as dangerous. When we feel low, memories involving loss, failure or rejection may become easier to access.
Finally, people often notice information that confirms what they already believe. If I think, “I always disappoint people”, I may quickly remember my mistakes while overlooking the occasions when I acted appropriately.
Feeling that a thought is true does not prove that it is true. Emotional intensity gives us information about our present state, but it is not, on its own, objective evidence.
Thinking something does not mean wanting to do it
This distinction is particularly important when intrusive thoughts appear.
A person may suddenly imagine pushing someone, losing control, developing an illness, causing an accident or making a terrible mistake. The image may cause fear precisely because it contradicts what the person wants.
In these situations, spending hours analysing why the thought appeared, repeatedly checking one’s intentions or looking for absolute reassurance may increase the importance the mind gives to the intrusion.
A mental event is not an action. Nor does it define a person’s personality, values or identity.
Thought, desire and intention are different. The presence of an unwanted idea does not demonstrate that you want to act on it. The context, your relationship with the thought and your actual behaviour are what matter.
Reflection, worry, rumination and intrusive thoughts
These processes can feel similar because they all occur in the mind. However, recognising the difference can help us choose a more appropriate response.
| Process | How it usually works | Helpful indicator | Potentially useful response |
|---|---|---|---|
| Reflection | Organises information to understand a situation, learn or make a decision. | Leads to a conclusion, new understanding or a specific next step. | Give the issue a reasonable amount of consideration and decide what action comes next. |
| Worry | Anticipates future threats and links together possibilities about what might go wrong. | Repeated “what if…?” questions appear without producing a clear solution. | Distinguish between a problem that can be solved and uncertainty that cannot be fully removed. |
| Rumination | Reviews past losses, mistakes, causes or conversations. | The same analysis repeats, distress increases and no new information emerges. | Pause the mental review, return attention to the present and take one practical action. |
| Intrusive thought | Appears without being invited and may feel strange, upsetting or inconsistent with personal values. | Its content produces fear and a strong urge to neutralise it or obtain certainty. | Recognise it as a mental event and avoid becoming caught in repeated checking or reassurance seeking. |
Can we control our thoughts?
We cannot choose everything that appears in the mind. Nor can we completely prevent memories, spontaneous associations or initial automatic interpretations.
What we can practise is how we respond.
- We can notice a thought before acting on it.
- We can examine whether there is enough evidence.
- We can accept that certainty will not always be possible.
- We can choose not to continue a repetitive analysis.
- We can solve a specific problem when a practical solution exists.
- We can act according to our values even while the mind continues to produce doubt.
By contrast, attempting to empty the mind completely often increases monitoring. The person begins checking whether the thought is still present and, without intending to, gives it further attention.
The aim is not to control every mental event. It is to regain the ability to choose how to respond.
When should you question a thought, and when should you let it pass?
No single technique is suitable for every thought. The response depends on the type of process and the function it appears to be serving.
Question it
This may help when the thought is a prediction, extreme judgement, rushed interpretation or self-critical belief that can be compared with evidence.
Solve the problem
This is appropriate when there is a specific difficulty for which you can identify options, resources, timeframes and a first step.
Allow uncertainty
This may be necessary when you are searching for an absolute guarantee that no amount of checking can genuinely provide.
Let it pass
This may be more helpful when the thought is an intrusion, passing image or mental repetition that you have already analysed many times without gaining new information.
Questions for reviewing an interpretation
- Which part is an observable fact, and which part is my interpretation?
- What evidence supports this conclusion?
- What information might I be overlooking?
- Are there other reasonable explanations?
- Am I confusing a possibility with a certainty?
- What would I say to someone I care about if they were thinking this?
- Is this analysis helping me decide what to do, or simply keeping me stuck?
The purpose is not to manufacture a positive version of events. It is to develop a more complete, realistic and useful response.
Initial thought: “My presentation will be terrible and everyone will laugh at me.”
Overly positive response: “Everything will be perfect.”
More balanced response: “I feel nervous and I may make a mistake. I can prepare, speak more slowly and continue even if it is not perfect.”
A practical exercise for relating to thoughts differently
Writing can help separate what actually happened from the automatic interpretation. It may also reveal patterns that are difficult to recognise while we are caught inside the distress.
The five-step pause
Describe the situation
Write down only what a camera could have observed. Avoid adding explanations about another person’s intentions at this stage.
Name what appeared in your mind
It may have been a sentence, image, doubt, memory or prediction. Try to record the thought in its original words.
Notice the effect
Identify the emotion, physical sensations, urge and what you did next.
Identify what is needed
Ask whether you need to review an interpretation, solve a problem, tolerate uncertainty or allow an intrusion to pass.
Choose a helpful action
Define one small and realistic behaviour, such as asking for information, resting, returning to a task, speaking to someone or reconnecting with the present.
You do not need to complete this exercise for every thought. It may be useful when an interpretation causes significant distress, appears repeatedly or influences important decisions.
What role can mindfulness play?
Mindfulness does not mean suppressing thoughts or achieving permanent calm. It involves paying attention to present experience with greater openness and less automatic reaction.
Worries, memories, boredom or discomfort may still appear during mindfulness practice. The exercise is to recognise that attention has wandered and gently return to an anchor, such as breathing, sounds or the contact between the body and the chair.
Our guide on what mindfulness is and how it is used in psychology explains in more detail what mindfulness involves, what it does not promise and how to begin practising safely.
A brief two-minute practice
- Pause and notice the position of your body.
- Observe three breaths without trying to change them.
- When a thought appears, label it simply: “worry”, “memory”, “judgement” or “planning”.
- Do not analyse its content during this exercise.
- Return attention to breathing, sounds or the feeling of your feet on the floor.
- When you finish, return to the activity you were doing.
This exercise may reduce automatic reactions. However, if focusing on the body substantially increases distress, activates traumatic memories or leaves you feeling overwhelmed, the practice may need to be adapted with professional support.
Common mistakes when trying to control the mind
Trying to eliminate every negative thought
A healthy mind is not a mind that produces only pleasant ideas. Fear, doubt, sadness and self-criticism may appear even when a person has good psychological wellbeing.
Arguing with every thought for hours
Reviewing an interpretation can be helpful. Nevertheless, repeating the same analysis in search of total reassurance can become another form of rumination.
Confusing thinking with doing
The presence of an idea is not the same as a behaviour. Confusing the two can intensify guilt and fear when intrusive thoughts appear.
Using positive statements that do not feel believable
Telling yourself that “everything will be perfect” when there is genuine uncertainty may feel unconvincing. A balanced and specific response is usually more useful.
Avoiding everything that creates discomfort
Avoidance can reduce anxiety in the short term. Over time, however, it may prevent us from discovering that we can manage the situation with appropriate support and resources.
Waiting to feel better before taking action
Sometimes action comes before emotional change. Taking one manageable step may later influence both the sense of capability and the thoughts that follow.
When might psychological support be helpful?
Occasional negative thoughts, worries and intrusions are part of human experience. A single thought does not, by itself, indicate a psychological disorder.
It may be worth requesting an assessment when:
- Thoughts occupy a significant part of the day.
- Worry prevents rest or concentration.
- Rumination maintains sadness, guilt or anger for long periods.
- Intrusive thoughts lead to checking, rituals or constant reassurance seeking.
- You avoid places, activities, decisions or relationships because of what you might think or feel.
- Sleep, work, education or relationships are being affected.
- You try to control the mind through alcohol, drugs, self-harm or other harmful behaviours.
- Thoughts involve not wanting to live or harming yourself.
A psychological assessment is not simply about deciding whether a thought is “rational” or “irrational”. It also considers personal history, context, emotions, behaviour, relationships and the factors maintaining the difficulty.
Depending on the individual situation, psychological work may include cognitive behavioural tools, contextual approaches, mindfulness, exposure-based work, problem solving, behavioural activation or other personalised interventions.
You can learn more about how we approach related difficulties through our pages on anxiety treatment, depression support and obsessive-compulsive disorder.
Urgent help: if you are having suicidal thoughts, feel that you may harm yourself or cannot keep yourself safe, seek immediate support. In Spain, call 112 in an emergency or contact the free, confidential 024 service. In Gibraltar, call 111 for the 24-hour Mental Health Crisis Response Service. Ocnos Psychology Clinic is not an emergency service.
Does your mind struggle to switch off?
When thoughts repeat, create intense fear or begin to influence important decisions, understanding the pattern may help you regain greater freedom of choice.
Ocnos Psychology Clinic offers in-person psychological support in Palmones, Los Barrios, for people from Algeciras, Gibraltar and other areas of Campo de Gibraltar. Online therapy is also available when this format is appropriate.
Frequently asked questions about thoughts
What exactly are thoughts?
Thoughts are mental events and processes that may appear as words, images, memories, doubts, judgements or predictions. They help us represent and interpret experience, but they are not an exact copy of reality.
Does everything I think reflect reality?
No. Some thoughts describe facts reasonably accurately, while others are interpretations, predictions or incomplete conclusions. It can help to distinguish what you know, what you are assuming and what information is still missing.
Why do I have thoughts I do not want?
The mind continuously produces spontaneous associations. Unwanted ideas, images or mental impulses may appear without deliberate intention. Their presence does not define the person experiencing them.
Does thinking something mean I want to do it?
No. Thoughts, desires, intentions and behaviours are different processes. An intrusive thought may feel particularly upsetting because it conflicts with the person’s values and genuine wishes.
Can thoughts be completely controlled?
We cannot decide everything that appears in the mind. We can, however, practise how we respond, how long we continue an analysis and which behaviour we choose afterwards.
Why does a thought appear more when I try not to think about it?
To check whether you are still thinking about something, the mind has to continue monitoring that content. This monitoring may keep it active. Recognising the thought and redirecting attention is often more useful than entering a constant struggle with it.
How can I tell whether I am reflecting or ruminating?
Reflection generally produces understanding, a decision or a next step. Rumination repeats the same analysis, increases distress and provides little or no new information.
Does mindfulness empty the mind?
No. Mindfulness involves observing thoughts, emotions and physical sensations with greater awareness and less automatic reaction. The mind may continue producing thoughts throughout the practice.
When should I speak to a psychologist?
Professional support may be helpful when thoughts cause significant distress, take up a great deal of time, affect sleep or everyday functioning, lead to avoidance or compulsions, or are accompanied by hopelessness or concerns about personal safety.
Health information sources
- NHS Every Mind Matters: reframing unhelpful thoughts.
- NHS Every Mind Matters: thought records.
- Centre for Clinical Interventions: worry and rumination.
- American Psychological Association: mindfulness.
- NHS: obsessive-compulsive disorder.
- Spanish Ministry of Health: 024 suicide support service.
- Gibraltar Health Authority: Mental Health Crisis Response Service.