This section is from the book "Michael Raduga", by School of Out-of-Body Travel. A Practical Guidebook. Also see: Adventures Beyond the Body.
This technique involves straining the whole body and differs little from straining the brain. When awakening from sleep, make one to three attempts at straining the whole body, refraining from actually flexing any physical muscle. If nothing happens, try another technique. Vibrations may occur as a result, and amplifying these by straining the body without using muscles can induce a spontaneous separation from the body. When the vibrations become strong enough, attempt a separation technique. Sounds often arise during the vibration which allow for listening in and a subsequent entrance to the phase.
To practice: while lying down, eyes closed, try to strain the entire body without using physical muscles for several minutes. Tingling, internal pressure, and a strain on the brain often occur during this exercise. Remember to avoid straining any real muscles. If physical strain occurs, results may be forfeited in the critical moment of fruition.
 
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