Buddhist-Meditation-Systematic-and-Practical

No unity, no diversity;
No coming, no going."
After one meditates on the first pair, one knows that the
original nature of every dharma is sunyata. One then
meditates on the appearance of a dharma—it seems to
exist stably, but actually changes every moment. There
is no permanent dharma, and since each dharma is
impermanent, it is also not annihilated (second pair).
After one meditates on a single dharma, as above, then
one should try to meditate on two. Are they united or
diverse? As the nature of them both is sunyata, their
totality, taken together, is also sunyata. Unity and
diversity, then, are both impossible (third pair).
For instance, the birth and death of a woman is neither
the production of her parents nor an extinction caused
by yama, for if her consciousness did not enter the
womb of her mother, she could not have been conceived,
even if the father's semen had met the mother's ovum.
Yama is always waiting there, but the woman's life
might be maintained by some other conditions; before
the conditions vanish, Yama cannot take her life away.
A woman's beauty changes daily, and she will grow old
and lose it. Many examples of such change may be seen
in one's surroundings. When a woman marries, she
seems to be united with her husband; but when they are
divorced, they seem to be diverse. Even on a couple's
honeymoon, at times they seem to love each other
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