Tantra has been studied as an esoteric practice and ritualistic religion, sometimes referred to as Tantrism. There is a wide gap between what Tantra means to its followers, and the way Tantra has been represented or perceived since colonial era writers began commenting on it. Many definitions of Tantra have been proposed since, and there is no universally accepted definition. André Padoux, in his review of Tantra definitions offers two, then rejects both. One definition, due to Padoux, is found among Tantra practitioners – it is any "system of observances" about the vision of man and the cosmos where correspondences between the inner world of the person and the macrocosmic reality play an essential role. Another definition, more common among observers and non-practitioners, is some "set of mechanistic rituals, omitting entirely the ideological side". Tantric traditions have been studied mostly from textual and historical perspectives. Anthropological work on living Tantric tradition is scarce, and ethnography has rarely engaged with the study of Tantra. This is arguably a result of the modern construction of Tantrism as occult, esoteric and secret. Some scholars have tried to demystify the myth of secrecy in contemporary Tantric traditions, suggesting new methodological avenues to overcome the ethical and epistemological problems in the study of living Tantric traditions. According to David N. Lorenzen, two different kinds of definitions of Tantra exist, narrow and broad. According to the narrow definition, Tantrism, or "Tantric religion", is the elite traditions directly based on the Sanskrit texts called the Tantras, Samhitas, and Agamas. Lorenzen's "broad definition" extends this by including a broad range of "magical beliefs and practices" such as Yoga and Shaktism. However, "yoga" itself is a term broadly attributed to many traditions and practices, including the western assumption that yoga is synonymous with physical stretching, and little more. Defined in the Patanjali Yoga Sutras: "Yoga is stilling the nature of the mind." In all reality, a third definition also exists—sexual abuse in the name of spirituality and the sacred. Even a Buddhist Rinpoche is driven to breach the fundamental fiduciary duties owed to students and disciples, not to mention numerous self-proclaimed "guru" figures in USA. Western neo-tantra has been popularized most notably by, Chandra Mohan / Rajneesh / Osho, and followers such as Margo Anand as "The World's Leading Expert on Tantra." Richard Payne states that Tantra has been commonly but incorrectly associated with sex, given popular culture's prurient