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Bhagavad Gita 4.38
The traditional text
तत्स्वयं योगसंसिद्धः कालेनात्मनि विन्दति॥
Roman reading aid
na hi jñānena sadṛśaṃ pavitram iha vidyate |
tat svayaṃ yoga-saṃsiddhaḥ kālenātmani vindati ||
Meaning in everyday language
Nothing here equals knowledge in its power to purify. In time, one made ready through yoga discovers that knowledge within the Self.
Understand the teaching
Jnana in this chapter concerns liberating knowledge of reality, not merely accumulating facts. Krishna places it beside disciplined practice and the passage of time. The phrase kalena, in time, allows for maturation. Knowledge is presented as something that changes the seeker’s relation to action and the Self, rather than only increasing what can be repeated from memory.
A learning analogy is the difference between reciting a rule and understanding when it applies. Careful reading, questions and repeated reflection may gradually change a habit. Such examples help us approach the verse, while its claim about purification remains spiritual. Different traditions explain the preparation for this knowledge through their accounts of yoga.
Words and phrases
- ज्ञानेन सदृशम् (jñānena sadṛśam)
- comparable to knowledge
- पवित्रम् (pavitram)
- purifying
- योगसंसिद्धः (yoga-saṃsiddhaḥ)
- made ready or perfected through yoga
- कालेन (kālena)
- in time
- आत्मनि विन्दति (ātmani vindati)
- finds in the Self

Pause and think
How could you tell that a teaching is becoming more than memorised words?
See an explained answer
I can explain its context, consider a difficult example and notice whether it changes a choice I make. Repeating the sentence is a beginning; understanding develops through reflection and practice.
