Disclaimer: I am probably completely wrong.
When we die, does anything really change? Aren’t we just reassembled into other people? Not reincarnated, but mashed up and put into different parts of new people. Like, everyone is just a jumbled up jigsaw of other peoples ideas, thoughts, personalities, etc. I mean, as a species we might know more and (hopefully) make fewer mistakes, but are we really that different as individual people as we were 100 or 200 years ago? If not, then what is death but a temporary loss of consciousness? It of course means a lot to us as individuals, but is it truly a loss as a whole?
From any sort of mystical perspective, death is an illusion. Our truest identity does not reside in this game of selfhood that we’re playing but in our essential oneness with all things. Thus “I” was never really born and will never really die. I’ve always been here and always will be.
That seems to be one part of what you’re talking about. You also seem to kind of refer to how we can live on via who we influence with our personalities and ideas. I like this idea and think there’s truth in it. Our individual selves live on in the mark they make on other people and on the planet. Reminds me of some other quote: “A man dies twice: once when he stops breathing and a second time the last time someone ever says his name.” Or something like that.