Death is a release, birth a calamity and “I am the body” a fundamentally wrong idea.
The man is mature who is fully prepared to let go of everything.
When consciousness decides to leave the body, to drop the whole mind/body apparatus, it does so spontaneously. No meetings are convened, permissions sought or variables examined. A breath goes out and doesn’t return.
It’s in the nature of the mind to misunderstand things. Knowing’s not thinking.
“When you realize yourself as less than a point in space and time, something too small to be cut and too short-lived to be killed, then, and then only, all fear goes.”