The soul cannot be cut by any weapon, burned by fire, moi...

नैनं छिन्दन्ति शस्त्राणि नैनं दहति पावकः। न चैनं क्लेदयन्त्यापो न शोषयति मारुतः॥ The soul cannot be cut by any weapon, burned by fire, moistened by water, or dried by the wind. It is eternal, all-pervading, unchangeable, immovable, and forever the same. — Bhagavad Gita 2.23