It is for a note that life basically seeks happiness is last long but the happiness illusion indicates is short term only. True happiness is ever lasting. When one misses that happiness the chapter of suffering starts which lands the life in miseries.
The life one bear is one part of series one subjected on the chapter of birth and rebirth. Child hood follows by adolescence and succeed in old age and the same chapter repetition, no stage of life is abiding.
Its true spirit which abides by the self and continue to carry on as live as any thing till one unified with ultimate soul mate. And it is a devotional spirit which merges with divine spirit to make it. And true saints help a lot on the subject.
Jai Sri Baba lal ji
May lord bless all.
Thanks please.