I entertain the idea that existence is a game, more so than other ideas I've had or heard of. I heard some one refer to it as 'being the best actor, & the best audience' we all get sucked in & believe in our own stories, that we are individuals separate from one another & from everything else. Like when you watch a brilliant movie with brilliant actors, & you really get into it & the world around you all but disappears, but you only come to realize you are in this state, or rather were in this state, after you have 'snapped' out of it and back into 'reality'.
So going with that idea, I think any notion of there being the
purpose to existence, is already achieved by our existence as individuals aka our existence is our purpose. Beyond that, I think it's a case of picking your poison, no purpose can be wrong, it's just what ever you fancy. I don't think you can do anything wrong in this game, as I don't think there are any expectations of a particular result, which is what I think is meant by 'everything/one is perfect'.
Not saying any of that as a matter of fact, or even as my own opinion, pffft I can barely commit to what I want for breakfast, let alone an idea on the purpose of 'my' existence.
I do like the idea though, & based on this idea, I don't think it matters what I believe, or what I do, there are no expectations for me or anyone to get it right
other than my own & others expectations of me as an individuals, which would be part of the game. ... Or something like that.