Hi Zhangyan,

I believe that trance comes before the "mind awake and body asleep" state. When we relax into a trance state, the body tends to reduce activity and relax into a sleep like state, the heart slows down, the muscels go limp and breathing deepens and relaxes. When we do this and keep our minds awake, we are in the perfect state to induce OBE. It is essential for the body to be deeply relaxed when projecting out of body.

It is possible to enter a light state of trance without the body being "asleep", but the depths of trance and body relaxation required to project out of body is relatively deep.

I am sure many others will also have valuable input and experience on this question.

Best Wishes

Jexx