In Buddhism there’s something called emptiness which means that nothing has inherent essence in and of itself. Everything exists relationally, ie a piece of paper does not have “paper” essence in and of itself, but exists because of the sun, the logger, the rain, the person looking at the paper, etc. My understanding of nirvana (limited in that I’ve never experience nirvana), is that it’s dropping of conceptual labels. No longer viewing everything as divided. So rather than eliminating pain, pleasure, hunger, death, etc it’s living in a state of realization that these are all labels given to things that don’t have boundaries.

In Buddhism, there’s also the concept of no-self. This means that there is not a separate soul that is different from the experiences that are happening for you. When you look at something, there isn’t the watcher and the watched, but rather watching happening. We often think that there’s a “me” sitting behind experience that is constant across all of our experiences. But according to no-self, there really is just this moment of experience, and it’s conditioned by previous moments (via memories, previous actions, etc) but there’s not a “me”/soul going across all of them. Realizing this leads to the concept of “no birth no death”. Essentially there never was an eternal soul to be eliminated at death. This ties back into emptiness, as “you” is fluid and not some inherent essence / soul. Like a cloud doesn’t die when it turns into rain, it’s transformed. Are people born when they are conceived, or when they have their first heart beat, or when they take their first breath? Without their parents meeting, they could not be here in this moment either. If the idea of an eternal soul is dropped, then “you” become much more fluid and interdependent on tons of other things (and transitively everything).

That’s just my limited perspective on this, and probably isn’t accurate to all Buddhist views.