It is said that the soul does not die even when the body is lost (death), because God lives with it in invisible form. Like, after casting off worn-out clothes, new clothes are worn, consider this body as same. A soul can neither be cut, nor put on fire, nor can be drowned in water, nor can air make it dry, it is immortal. - Bhagavad Gita Chapter 2, Verse 26-30.