[There's something in what Hizamaru says that makes complete sense. He takes a sip as he thinks, eyes growing a little soft and expression more worn down than usual as he thinks on those words.]

...I can't lose my human body here. It's the one consistent thing that has kept me alive through every single death I've faced. Without a body to return to, we can't stay alive. I'm...every day I think about the fact that we're still losing people and we don't really know what the end result will be. Maybe we are supposed to be spirits, or maybe we're supposed to find a way to bring them back. I don't know. But I can't die here. There's something very important I have to get back to, and even if I were a spirit I'm afraid I would lose it forever.

[...] But I like the theory anyway. That it really isn't final either way.