First Landmarks of Soul Travel
One way to leave the body via Soul Travel is to lie down after dinner when you are drowsy. Plan to nap for five minutes, and watch the process of falling asleep. If you try the exercise with your spouse, agree to meet outside the body a few minutes later. Then watch carefully as your mate steps free of the physical body and enters the spiritual one in a burst of radiant light.
One always goes out of the body when he falls asleep, but it is an unconscious act. In Soul Travel, the only difference is that we are trying to get out of the body in full awareness.
The moment Soul leaves the body, It finds Itself in a blue-grey zone near the Physical Plane. This zone is an approach to the Astral Plane. The sensation of moving from the Physical to the Astral body is like slipping through a large iris of mild wind currents; this iris is the Spiritual Eye. Soul enters this neutral zone of blue-grey tones in Its Astral form, a sheath which looks like a thousand sparkling stars.
This buffer zone, or corridor, between the Physical and lower Astral Planes resembles the underground silo of an enormous rocket that is perhaps two hundred feet in diameter and more than two thousand feet deep. The ceiling if this circular pocket is open and may display a brilliant canopy of white light, or you may see a night sky sprinkled with specks of twinkling stars. There may even be a pastoral scene by a river, whose waters murmur their pleasure at life.
Whatever scene is displayed in the opening of the vast ceiling, Soul is drawn toward it at a mighty speed. Most people begin to recall their dreams only after their departure from this launching zone between the two worlds, and after their arrival at a faraway destination on the Astral Plane.
—Sri Harold Klemp
The Spiritual Exercises of ECK