1.
4. The function is all in the center, but the mechanism is all in the two eyes.
The two eyes are the handle of the stars, which manages Creation and
operates yin and yang.
5. The major medicinal ingredient beginning to end is only the "metal in the
middle of primary water" (i.e., the "lead in the region of water"). The
preceding talk of turning the light around points out a method for beginners
to control the inside from outside, thus helping them to attain independence.
6. This is for middling and lesser people cultivating the lower two passes in
order to penetrate the upper pass. Now as the Way gradually becomes clear
and mastery of the device gradually matures, Heaven does not begrudge the
Way but directly divulges the unsurpassed doctrine. Keep it confidential,
and work it out.
7. Turning the light around is only the general term: with each level of
progress in practice, the efflorescence of the light increases in magnitude,
and the method of turning around becomes subtler. Previously one
controlled the inside from the outside; now one abides in the center and
controls the outside. Before, the assistant administered for the master; now
one promulgates policy in service of the master. There has manifestly been
a great reversal.
