The Bhagavad-Gita: Chapter 2: Of Doctrines

Never the spirit was born; the spirit shall cease to be never; Never was time it was not; End and Beginning are dreams! Birthless and deathless and changeless remaineth the spirit for ever; Death hath not touched it at all, dead though the house of it seems! Who knoweth it exhaustless, self-sustained, Immortal, indestructible,- shall such Say, "I have killed a man, or caused to kill?" Nay, but as when one layeth His worn-out robes away, And, taking new ones, sayeth, "These will I wear to-day!" So putteth by the spirit Lightly its garb of flesh, And passeth to inherit A residence afresh. I say to thee weapons reach not the Life; Flame burns it not, waters cannot o'erwhelm, Nor dry winds wither it. Impenetrable, Unentered, unassailed, unharmed, untouched, Immortal, all-arriving, stable, sure, Invisible, ineffable, by word And thought uncompassed, ever all itself, Thus is the Soul declared! How wilt thou, then,- Knowing it so,- grieve when thou shouldst not grieve? How, if thou hearest that the man new-dead Is, like the man new-born, still living man- One same, existent Spirit- wilt thou weep? The end of birth is death; the end of death Is birth: this is ordained! and mournest thou, Chief of the stalwart arm! for what befalls Which could not otherwise befall? The birth Of living things comes unperceived; the death Comes unperceived; between them, beings perceive: What is there sorrowful herein, dear Prince?