UP/The Universe CANNOT be SUSTAINED (by thought).

It comes all of itself when one is at COMPLETE leisure (empty brain), when there is void in the brain, no effort at all, no purpose, no knowledge of anything, no expectation. 

Complete void in the brain = complete UP/the Universe.

It's bc the void in the brain IS the same void that is the Universe..

Any PURPOSE/goal = the split into subject-object/ horizontal conflict. It's actually a lapse in observation, incorrect observation, so thought can than "insert" this illusion (sometimes functional). To operate on the "environment" thought invents the division into subject-object (something in the "environment", like a forest to cut). The subject (thinks that it) acts on the object/ environment. Without a purpose it's not possible.

That is the only "problem". The subject/the self is not there in trance/hypnosis. Therefore the perpetrator can say: "I didn't know what I was doing when I was killing my wife" in a crime of passion (I'm not saying it's OK to kill somebody or it should or shouldn't be punished). The illusion of the Self is not there in the pure observation of the UP either. But it's there in the horizontal conflict, when there is some purpose, so struggle to achieve, to get somewhere else than here (to get that "what should be"). It is "work" too (C). That's why work can be stressful.

UP/Yoga/Zen/Dhjana/the Universe comes to the emptiness in the brain, when the brain is completely unfocused, without a direction, without a purpose, expectation, knowledge, desire, etc. But it's not the other way round, that thought goes to UP. There must be the emptiness of the brain, not-knowing anything at all, so not trying anything, not attempting anything (because how can you attempt anything when you don't know anything, right?)