I am afraid this is a very, very broad question. I cannot answer it unless I know what your situation is. Please, feel free to ask me a follow up with more details.

As for ‘how this works’ I suppose a very basic answer would be this:

sburb is a game destined to be played on every planet with intelligent life, in every reality. Many are destined to play- those who are are destined from birth due to a series of time loops.

Derse and Prospit are moons within a place called the ‘medium’ which is a sort of pocket space that exists for the game to be played in. If you are destined to play the game, and thus have your origin in the medium, it means that you have a second body there- lying asleep in a tower until you awaken.