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Tantric yoga

According to Samuel, Tantra is a contested concept. Tantra yoga may be described as practices in 9th to 10th century Buddhist and Hindu (Saiva, Shakti) texts which included yogic practices with elaborate deity visualizations using geometric arrays and drawings (mandalas), male and (particularly) female deities, life-stage-related rituals, the use of chakras and mantras, and sexual techniques aimed at aiding one's health, longevity and liberation.