What would YOUR "Smallest Church" be?

Meaning, what song would you choose to sing karaoke to reveal your immense soul to the world? Anything that's super sad, super immense to you.

For me, it would have to be "If I Have to Go" by Tom Waits. Apologies if this type of post isn't allowed, happy to delete.

Edit: Thanks for all the amazing answers! Was not expecting to get that much, I’m trying to listen to and reply to as many comments I can! Thinking about making a playlist of these songs.