Tantric sexuality is a vast field of living knowledge in which coital union is infinitely modulated in terms of all the sense fields.It voluptuates in: the soft silence of falling snow on bare branches; the succulent stickiness of budding twigs; the glorious unreserved unravelling of blossoms; and, the cool moist fire of autumnal foliage. It is the art of the way in which the eye sees, and the poetry of the way in which the ear hears. Eyesight penetrates visual phenomena, and is engulfed by the field of vision. Hearing penetrates sound and is engulfed by the auditory dimension. Every sense-perception and sense field performs, and is performed by, the same ecstatic dance.
p52, Entering the Heart of the Sun and Moon Ngakpa Chögyam and Khandro Déchen, Aro Books, 2009, ISBN 978-0-9653948-3-3