Internal trip (antaryatra) follows kayotsarga.
This exercise promotes better generation of the nervous energy which is necessary for the subsequent meditation practice. It directs the flow of your spiritual energy in an upward direction, thereby weakening the force of psychological distortions such as cruelty and fear.
Exercise:
Maintain the posture and the relaxed condition of the body achieved by kayotsarga Focus your full attention on the bottom of the spine called Sakti Kendra (Centre of Energy). Direct it to travel upwards along the spinal cord to the top of the head - Jnana Kendra (Centre of Knowledge), confining it to remain within it.
When you reach the top, direct it to move downwards take the same path until you reach Sakti Kendra again. Repeat the exercise for about five to seven minutes. Concentrate your entire consciousness on the path of the trip - spinal cord, and do not permit it to be diverted.
Carefully perceive the sensations therein caused by the subtle vibrations of the flow of the vital energy - prana
After some practice of this exercise, the rate of the ascending and descending conscious attention is to be synchronised with the rate of respiration. When the conscious attention begins to ascend, start exhaling, synchronising the rate of ascent with that of exhalation, so that the top of the head is reached simultaneously with the completion of exhalation. Similarly, the inhalation should be started with the downward trip of the conscious attention, and should be complete when it reaches the Sakti Kendra Maintain the synchronisation.