The Gita

 Again, it follows that because the soul is not made of matter, since it is spiritual, it cannot obey the laws of matter, it cannot be judged by the laws of matter. It is, therefore, unconquerable, birthless, deathless, and changeless.

“This Self, weapons cannot pierce, nor fire can burn, water cannot wet, nor air can dry up. Changless, all­pervading, unmoving, immovable, eternal is this Self of man.”