[He's talked to a wolf goddess, so he's pretty okay with talking to another immortal. Why not?]

It's...a struggle that seems to be in every world, and it's never limited to an outside force. Most have an internal battle, and that can be just as damaging as any physical weapon.

[Elysium knows that Nico has been struggling with his evils and demons for years.]

Good old fashioned conversing with people. I don't know if this is common knowledge yet, so we may need to be careful about it.