The term is also applied to Hindu ascetics (e.g., sadhus, gurus, swamis and yogis). Many Sadhus, Yogis, or Yoga practitioners keep beards, and represent all situations of life. Udasi is a religious sect of ascetic sadhus centred in northern India. He was mostly engaged in serving pilgrims, sadhus and saints. The Kumbh Mela is arranged in camps that give Hindu worshipers access to the Sadhus. The Aghori (Sanskrit "aghora") are a small group of vamacharic ascetic Shaiva sadhus. The Kumbh Melas attract many loner "sadhus" (monks) who do not belong to any akharas. The Naga sadhus , are often called Indian gymnosophists. Seeing of the Sadhus is carefully managed and worshipers often leave tokens at their feet. Locks are worn in India by Sadhus or Holy men. The Vaishnava sadhus are sometimes referred to as "vairagis". Many hippies, metalheads, and Indian sadhus have long hair, as well many older indie kids. He was found alive and taken in by the Naga Sadhus. An example is the Dattatreya Akhara (Ujjain) of the naked sadhus of Juna Naga establishment. Less numerous are Shakta sadhus, who are devoted to Shakti.