Bhagavad Gita: Chapter 2, Verse 24
अच्छेद्योऽयमदाह्योऽयमक्लेद्योऽशोष्य एव च |
नित्य: सर्वगत: स्थाणुरचलोऽयं सनातन: || 24||
achchhedyo ’yam adāhyo ’yam akledyo ’śhoṣhya eva cha
nityaḥ sarva-gataḥ sthāṇur achalo ’yaṁ sanātanaḥ
The soul is unbreakable and incombustible; it can neither be dampened nor dried. It is everlasting, in all places, unalterable, immutable, and primordial.
The point about immortality is again being driven home here. For the teacher to merely impart perfect knowledge is not enough; for that knowledge to be useful, it must sink deep into the heart of the student. Hence a skillful teacher often repeats a point previously made. In Sanskrit literature, this is called punarukti, or “repetition.” Shree Krishna has often used punarukti, as a tool in the Bhagavad Gita for stressing the important spiritual principles to ensure that they are grasped deeply by his student.