At the time of falling into sleep, the pranas will gather at the Heart Center and the Precious Center. When they are heavily concentrated, one will fall into sleep; thereafter, the pranas in these two parts gradually become thinner and thinner. When (most of) the pranas come to the Secret Center and Throat Center the fleeting dreams will appear; when the pranas have gathered in these two parts for some time the actual dreams (or steady dreams) will arise. When the pranas rise up to the Center Head and Navel Centers, one will awake. From the Head Center the Thig-le drops to the end of the precious organ; as it reaches the different

centers as mentioned above it will produce the various blisses (or so-called Four Blisses).

This is the meaning of the four times:

Through the power of the prana the Yogi manipulates in exercise, the Downward-Bliss produces the Dim Innate when it reaches the center of the navel; when it reaches the end of the precious organ the Bright Innate is produced.

That these four centers are very important in the meritorious exercises of dream and sleep by no means implies that they are not essential points upon which the exercises of mental concentration should be carried out during the daytime. Among all the centers in the body, the Navel Center is the one upon which the Yogi should begin. One should also know that to concentrate upon the different centers will produce different effects and specific advantages.

Footnotes

^158:* Thig-le is equivalent to the Sanskrit bindu and signifies a seed and source of life-power.--Ed.