Yes, from any community to any other community. It also doesn’t have to be your post. You can think of it as a more powerful form of Resteem because it creates a totally new post. This solves the 7 day payout issue and allows popular content to remain evergreen.

If you crosspost other people's content you'll also receive a 5% beneficiary for connecting that content to a new set of eyeballs. It's a win win.