Death is not like going to sleep, it's more like waking up from a dream and realizing the person you were in the dream wasn't you, the problems you had in the dream weren't your problems and waking up from the dream to this world is like going back to sleep again and waking up in a dream world, forgetting who we are again and getting lost in the dream character, the character who we think we are and who has problems. Waking up in a dream and realizing we are not the dream character but the dreamer is enlightenment.