I sort of understand the beginning, how the darkness is the pure essence of everything and while it is forever changing it is always still there stretched among it's morphed self.
But everything else...well it seems like he's giving us unfinished ideas, that while they make sense in his head trying to present them is a much harder process.
EDIT: I just watched imaginary games 2 and it makes a bit more sense now.
It seems like he's portraying this world as just an "imaginary game" so to speak as everything we know and see are just figments of what we have concocted in our own minds, and within that aspect each picture or moment in time is just an objective reality due to this because one persons cannot be the same as anothers.
As for all of his other videos...i have no idea...is he schizophrenic? cuz thats the vibe im getting from them.