Mono No Aware is this japanese "term"(?)/"concept"(?), of the appreciation of the temporal nature of things. Not everything is meant to be or should be permanent, but that very nature I think can bring a level of appreciation for things.

I don't even know if I fully understand or grasp this concept since it's something that I'm only recently starting to become aware of myself, but hopefully my rambling is coherent enough to get some of my current thoughts about it out there <3.