Tantra is an ancient spiritual tradition with sacred rituals dating back hundreds if not thousands of years. Descriptions of Tantric practices sometimes read like a contemporary sex manual, as in the following account of the ritual known as Lingam Puja:
The male penis is worshipped by the Pundai-Stri who blessed the pujari with her vaginal libations. She will move her hands across his body in large circles, finally concentrating her attention on the lingam or the erect penis. She will then hold the erect lingam in her hand and stroke it gently, and then more vigorously until the lingam blesses her with its libations. Sometimes, the yoni-stri will take the Penile libations in her mouth, with the erect Lingam shooting its life-giving seminal fluids into her mouth.
[Then] she takes the lingam to the mouth of her divine passage or yoni, and enjoys the warmth of the throbbing penis. The warm embrace of the lingam by the unctuous yoni creates a sangam (union) that generates cosmic energy that leads to liberation or a state of Nirvana that must be experienced to be appreciated.