Answer: I am not saying that it is wonderful, but if a person sleeps, it is a sign that this is his state.
During those 12 years when I was next to my teacher, I had a period of a month and a half when I slept. I was very ashamed to admit this; I tried to create the impression that I was not sleeping. I was in all kinds of intentions, but basically I was sleeping. Sometimes Rabash would push me with his foot: “Well, what?” and I would wake up.
Sometimes it is necessary to go through states like these in order to understand the others better, to be integrated with them. Even for a moment it is necessary to know how to move towards other people. And therefore there are no threatening, terrible states that a Kabbalist would not go through. You must pass through all of the states, still, vegetative, animate, and human, all of the desires, all of the thoughts, that exist in creation.
From the World Zohar Week “Integral Education Convention”Day Three 2/4/14,Workshop 5