As you see here, the circles at the edge is several universes, 7. Each one of them have a parallel universe. The line between these universes are gates, or portals, to enter an another universe. But inside this portal, there is a way, going through a wormhole, which leads to a parallel universe.
Actually, I am creating this to a sci-fi story I am writing.
In the reality, I believe that there are existing other universes.
