Iconographic imagery in the Indo-Tibetan Buddhist. Tantric (i.e., Vajrayana
) tradition is replete with polymorphic symbolic forms. Tantric texts thems
elves are multivalent, addressing astronomy, astrology, cosmology, history
embryology, physiology, pharmacology, alchemy, botany, philosophy, and sexu
ality. The Sri Kalacakra, a medieval Indo-Tibetan manuscript of great impor
t, describes ritual visualization sequences in which practitioners visualiz
e elaborate mandala designs and deified yab-yum (father-mother) consort cou
ples. The Kalacakra system is the preeminent conduit for the globalization
of Tibetan Buddhism, and contemporary enactments of its initiation ceremony
incorporate a variety of aesthetic genres, including sand mandala construc
tion and ritual dance.