 While the Nath siddhas enjoyed persistent popular success, they attracted the scorn of the elite classes.According to White, the term "yogi", has "for at least eight hundred years, been an all-purpose term employed to designate those Saiva specialists whom orthodox Hindus have considered suspect, heterodox, and even heretical in their doctrine and practice".The yoga as practiced by these Yogis, states White, is more closely identified in the eyes of those critics with black magic, sorcery and sexual perversions than with yoga in the conventional sense of the word.