Human have been thinking about that for as long as they were able to think. A lot of them put their ideas in books, you might find some interesting point of views in work from Seneca, or Alan Watts for example.

No one talks about death in real life, we just kind of go with the flow of "death is bad" yadda yadda. If you deconstruct your view on death and looks at how other societies or cultures sees deaths it can be eye opening. It's only bad if you see it as a bad thing.

"But tell me, do you consider it fairer that you should obey Nature, or that Nature should obey you? And what difference does it make how soon you depart from a place which you must depart from sooner or later? We should strive, not to live long, but to live rightly; for to achieve long life you have need of Fate only, but for right living you need the soul. A life is really long if it is a full life; but fullness is not attained until the soul has rendered to itself its proper Good, that is, until it has assumed control over itself. What benefit does this older man derive from the eighty years he has spent in idleness? A person like him has not lived; he has merely tarried awhile in life. Nor has he died late in life; he has simply been a long time dying. He has lived eighty years, has he? That depends upon the date from which you reckon his death! ... Nay, he has existed eighty years, unless perchance you mean by "he has lived" what we mean when we say that a tree "lives.""

https://en.wikisource.org/wiki/Moral_letters_to_Lucilius. (letters 4, 24, 26, 61, 82, 93)

https://terebess.hu/english/AlanWatts-On%20The%20Taboo%20Aga...