Buddhist-Meditation-Systematic-and-Practical

Nos. 17, 19 and 72, which give many good reasons for
the practice of vajra-love.)
Besides the theoretical reasons, one should learn the
secret practice from the guru personally. Such
instruction is not printed, but given only orally. One
should locate a guru who himself has had actual
experiences; in addition, a guru may, from his own
diligent practices, discover some new methods suitable
for this modern age.
By seeing the beautiful appearance of the dakini, one
practices non-duality of form and sunyata. By listening
to the articulate speech of the dakini, one practices the
non-duality of sound and sunyata. By smelling the
musky perfume of the dakini's lotus, one practices the
non-duality of scent and sunyata. By taking nectar
through kissing the dakini one practices the non-duality
of tastes and sunyata. By embracing, kissing, rubbing,
and squeezing every part of the dakini's body, one
practices the non-duality of touch and sunyata. If
non-duality of sunyata samadhi is lost in some degree,
sexual intercourse should be shunned—pleasure and
sunyata must balance each other.
The great pleasure wisdom-channel of a dakini is called
the "wisdom conch channel," and it is located in the
lotus. This is the ending of her median channel. Its tip is
very small and short, but there are various medicines to
extend it until it is capable of being inserted into the
urethra of the vajra. When the two median channels
832