Tibetan Yoga and Its Secret Doctrines: Attaining Right Knowledge, W. Y. Evans-Wentz, pp. 320, Routledge, 2005, ISBN 9780710308382, ... The damaru is used, somewhat like a timbrel, by Lamas and yogins in religious rites, especially in those of esoteric and mystic significance; for its parts are symbolical of the transitoriness of human existence ...
Folk Lore, Indian Publications, 1975, ... Snake charmers play Tubri, players of monkey and bear dance use Dugdugi ...