नैनं छिन्दन्ति शस्त्राणि नैनं दहति पावकः। न चैनं क्लेदयन्त्यापो न शोषयति मारुतः॥
nainam chhindanti shastrani nainam dahati pavakah na chainam kledayanty apo na shoshayati marutah
Translation
Weapons cannot cut the soul, fire cannot burn it, water cannot wet it, and wind cannot dry it.
Commentary
Krishna describes the soul's invulnerability through all the basic elements — earth (weapons), fire, water, and air. The soul transcends all material forces. This verse is one of the most quoted in Hindu philosophy.