Buddhist-Meditation-Systematic-and-Practical

There are other reasons for the necessity of practicing
vajra-love. The physical appearance of a male signifies
skillful means and compassion, but the female's
appearance represents wisdom. The attractive lines of
the female's breasts and hips show wisdom, while the
strong muscles and rough appearance of the male
indicate skill. Both need the help of the other.
Since the median channel is the palace of wisdom, or of
the Dharmakaya, the breath, channel, and drops which
pass through this median channel are sublimated into
Buddha-wisdom. The two ends, or gates, of this psychic
channel should be utilized by the meditator. The upper
gate is used to practice Tantric breathing, while the
lower gate (the reproductive organ) should also be used
to practice vajra-love. Thus the wisdom energy comes
from the male Buddhas and female dakinis, and this
may shorten the time to achieve Full Enlightenment.
To destroy the sorrow of lust by escaping from it is a
Hinayana method. Treating it as voidness of dharma is
the method of the Mahayana. Penetrating, subduing, and
using it as a means to save others is the Vajrayana
method. The higher the wisdom, the deeper the sorrow
it can subdue. It is like seeing a robber—we must go
after him; like catching a tiger cub—we must go to the
tigers' den; like applying a poison—which acts as an
antidote for another poison; or like falling down on the
land and using the same land to support ourselves as we
get up. (Readers are advised to read Chenian Booklets
831