Ah, you're a human... So it's probably a little confusing to you. Basically, it's a world where demons like to play! There's an infinite number of 'em out there... But your "Hell" and my hell might be different.

[Which might not help with his explanation, but alternate universes and dimensions did exist in his world!]

Arm strength ain't my strongest feature, but I feel you for legs! I do a loooot of running whenever I'm on the battlefield.