Alternative universes.There are a lot of stories about one destiny...
You can do 'Zoom In' or 'Zoom out' for watching closer (:
(c) Supernatural, Castiel
(c) ZenWriter, music 'Liquid Mountain'.[link]
to the part of the original picture
Also, it's an illustration to my fic, where I describe each of universe Castiel's playing with. But it's on russian - [link]