The Yoga of Knowledge

Arjuna fears killing his relatives, so Krishna reveals what death can't touch. Consciousness is 'aja' (unborn—it never came to be because it IS being), 'nitya' (eternal—outside time), 'śāśvata' (unchanging), and 'purāṇa' (primordial—foundational awareness). The radical claim: 'na hanyate hanyamāne śarīre'—consciousness isn't killed when the body is killed. What you fundamentally are doesn't participate in birth and death. Bodies come and go, but the awareness witnessing them remains untouched, like space is untouched by clouds passing through it.