Insignificance feels peaceful

Does anyone know any words that can describe this almost calm peaceful feeling when you realize how insignificant and unimportant your life in the grand scheme of things? Is it just existentialism? It sounds depressing but it’s a really nice feeling. And it’s not necessarily a feeling you get after existential dread or anxiety. It comes up when you are very one in yourself in a big crowded busy space or in a grandiose area in nature by yourself? Like you kinda feel like you can just live your life as a spec of sand on the beach or a droplet of water on a leaf? And still be content and happy. Maybe it’s just pure peacefulness or something. I like to imagine myself as a tiny person in the corner of some random place in the world where nobody would be able to guess but somehow I can be present there and experience it from my own pov? It’s so hard to explain but maybe because it seems so absurd and random but possible to imagine, that it gives me an uncanny good feeling.

Anyways I don’t know if this is super common or if I’m over explaining atp😭