Believe it or not, the essence of life is eternal: the essence of life (that is, nature, commonly known as "soul") is eternal; The phenomenon of life is a series of sentient beings (carrier, represented by all sentient living "creatures", including "people"). So life is actually in a state of constant life and death, so death is the prelude to the next regeneration, and life is to prepare for the next death, just like life and death. Life and death are continuous, but the carrier of life is changing. The so-called man dies as a sheep, and the sheep dies as a man. Whether regeneration after death can rise to a higher life level (there are six life levels: heaven, man, shura, livestock, ghost and hell) is determined by the practice of this life (karma).
Life and death exist continuously and objectively, regardless of whether there is faith or not. Belief and unbelief are the same. It's just that believers are more practical, while unbelievers regard the phenomenon of life as an "ostrich policy".