What Does Yoga Sūtra I.4 Mean?
In Yoga Sūtra I.4, Patañjali describes what happens when the mind does not settle: consciousness becomes identified with the fluctuations of the mind. After defining yoga in the previous sūtra as the condition in which the observer abides in its own nature, Patañjali now explains the ordinary human condition — identification with mental activity.
After Patañjali has given us, in the previous sūtra, an almost surgical definition of what occurs when yoga is realised — “the observer abides in its own nature” — he does not linger in illusions.
In sūtra I.4, he describes what takes place during the vast majority of our time.
Without drama, without moral condemnation, and without decorative spiritualities, Patañjali merely states a fact: when the mind does not settle, consciousness becomes confused with what the mind does.
Simple. Precise. And uncomfortably true.
For the direct continuation of this movement, see the previous sūtra: Yoga Sūtra I.3 — When consciousness ceases to be confused with the mind.
The Text and Translation
I.4 — vṛtti-sārūpyam itaratra
- vṛtti — fluctuations, modifications of the mind
- sārūpyam — conformity, assuming the same form, identification
- itaratra — at other times, otherwise
Translation:
Otherwise, consciousness identifies with the fluctuations of the mind.
Or, stated without ornamentation: when there is no clarity, we believe that we are what passes through the mind.
The Mind Is Not the Problem
It is not that the mind thinks. It is that we believe it.
This sūtra does not claim that the mind is a problem. The mind does exactly what a mind does: it thinks, associates, remembers, anticipates and imagines.
The critical point lies elsewhere: identification.
Consciousness — the puruṣa — is, by definition, immutable. It does not become anxious, irritated, brilliant or confused.
Yet, when the mind is in full activity, consciousness assumes the form of mental fluctuations. Not because it changes, but because it becomes confused with them.
A Very Unspiritual Example
All of us have experienced this.
We are seated in a cinema. We know perfectly well that what we are watching is a film. And yet:
- we tense up,
- we become emotionally moved,
- we suffer,
- we are thrilled.
For two hours, we forget that we are merely spectators.
What Yoga Sūtra I.4 describes is precisely this, but in existential form. Consciousness forgets that it observes and begins to live the narrative of the mind as if it were its own identity.
The Error Is Not Real — But Its Effects Are
It is essential to emphasise this point: the puruṣa never ceases to be what it is.
The identification is apparent, not ontological. Yet its effects are very real: anxiety, suffering, confusion, attachment and aversion.
The tradition employs a simple metaphor: a tranquil lake reflects the sun clearly; when the wind disturbs the surface, the reflection appears distorted.
The sun has not changed. The problem lies in the agitation of the water.
When the Mind Appears Conscious
- the mind, which is material and unconscious, appears to become intelligent;
- consciousness, which is free and immutable, appears to suffer, desire and fear.
This is a reversal of roles based on a play of reflections.
Just as a piece of iron heated to incandescence appears to be fire without actually being so, the mind reflects the light of consciousness and presents itself as a subject. Consciousness, in turn, appears to bear mental states that do not in fact belong to it.
The Role of Yoga
Patañjali does not propose:
- the destruction of the mind,
- the elimination of thoughts,
- entry into a permanent state of ecstasy.
The proposal is far more elegant — and far more demanding: the cessation of identification.
When citta enters nirodha, consciousness ceases to be confused with the fluctuations. It does not become something new. It merely recognises what it has always been.
Conclusion
Yoga Sūtra I.4 is a decidedly unsparing mirror of our everyday experience.
The mind moves. Consciousness identifies. And we call this “I”.
Yoga begins at the moment when this confusion is seen clearly — not to be fought, but to cease being believed.
The mind will continue to think. But consciousness no longer needs to believe everything that arises.
And that, curiously, changes everything.
Video — Yoga Sūtra I.4
Glossary of Sanskrit Terms
Citta
Mental field; mind.
Nirodha
Cessation; suspension; stabilisation.
Puruṣa
Consciousness; observing principle.
Sārūpyam
Conformity; assuming the same form; identification.
Sūtra
Aphorism; concise statement.
Vṛtti
Fluctuation; modification of the mind.
Yoga
Union; discipline; method of integration.
Frequently Asked Questions
What does Yoga Sūtra I.4 say?
Sūtra I.4 states that when the mind is not stabilised, consciousness identifies with its fluctuations.
The mind (citta) continuously produces thoughts, perceptions, memories and imaginings — the so-called vṛttis.
When these activities dominate experience, we tend to take their contents as if they were our identity. Thus, a thought becomes “I think”, and an emotion becomes “this is who I am”.
Does Yoga consider thinking to be a problem?
No. Thinking is a natural function of the mind. The mind exists precisely to perceive, interpret and organise experience.
The problem is not mental activity itself, but identification with it.
When we automatically believe everything the mind produces, we begin to live its contents as if they were our identity.
Yoga seeks to clarify this confusion.
What is the difference between mind and consciousness?
The mind (citta) belongs to nature (prakṛti) and is constantly changing. It thinks, remembers, imagines and reacts.
Consciousness (puruṣa) is different: it does not think and does not change. It is the principle that observes experience.
Yoga aims to reveal that the mind is an instrument, while consciousness is simply the witness.
What are vṛttis in the Yoga Sūtra?
Vṛttis are the modifications or movements of the mind.
Whenever we perceive something, remember an event or imagine a situation, the mind assumes a particular form.
These mental forms are the vṛttis.
Yoga Sūtra I.4 explains that consciousness identifies with these mental forms when clarity is absent.
Does puruṣa change when it identifies with the mind?
No. Puruṣa always remains unchanged. The identification described in the sūtra is only apparent.
Consciousness does not transform into the thoughts or emotions that arise in the mind.
However, while this confusion persists, mental states are experienced as if they were one’s own identity.
Why does the mind appear conscious?
The mind appears conscious because it reflects the light of consciousness.
In the Sāṃkhya-Yoga system, the mind is material and, by itself, unconscious.
However, by reflecting the presence of puruṣa, it begins to function as if it were a knowing and deciding subject.
Is the goal of yoga to stop thoughts?
No. The goal of yoga is to cease identification with thoughts.
When the mind becomes stable, its fluctuations no longer dominate experience.
Thoughts may still arise, but they no longer define who we are. The practice of yoga seeks to cultivate this stability and clarity.
How can we recognise identification with the mind?
We recognise identification when thoughts are experienced as absolute truths about ourselves.
For example, a thought of fear or failure arises and we immediately believe it.
At that moment, consciousness is no longer simply observing the thought — it is living inside it.
How does yoga dissolve identification with the mind?
Yoga develops discernment between that which observes and that which is observed.
With the stabilisation of the mind, it becomes clear that thoughts, emotions and perceptions belong to the mind (prakṛti) and not to consciousness (puruṣa).
When this distinction becomes evident, identification weakens.
What happens when identification ends?
When identification ends, consciousness remains established in its own nature.
The mind may continue to function, but it no longer defines the identity of consciousness.
In the Yoga Sūtra, the complete realisation of this freedom is called kaivalya: the independence of consciousness from the activities of nature.