So would anyone like to describe what planes are exactly to me? Thanks :) :D

Well I suppose they are seven visions of reality. The higher the plane, the more you can see the 'true' form of spirits when they manifest on earth. Humans can only see them with special glasses or contact lenses that contain minor beings in them.

Now, I'm no scientist, but I have a suspicious that the planes are very closely related to the electromagnetic spectrum.