I don't think there's any "meaning", really. We just happen to be here, against all odds. So enjoy it, and try to make your own life and the lives of those around you better. That's it really.
I was listening to a podcast recently that said if we are the only planet with life, then if we weren't here the entire universe would be floating around forever, and nobody and nothing would ever witness it. That gave me the heeby jeebies 😵💫 So maybe we're just here to witness that the universe exists!