From what I remember of this, it felt very powerful, strange, and strangely rational.
I believe the concept was that of the universe and objects and phenomena being the actual expressions of things such as thinking or of a body. That your veins exist because they are the physical expression in the world of this consciousness being.
That the entire universe is built on the disassociated identities of the universe taking on form as humans. The idea is that this is all consciousness but there are parts that have disassociated from it and parts that have not (chairs, beds, floors, walls, etc).