Enlightenment (spiritual) yoga" and "karma yoga" are subsidiary. In bhakti yoga, practice centers on the worship God in any way and in any form, like Krishna or Ayyappa. Adi Shankara himself was a proponent of devotional worship or "Bhakti". But Adi Shankara taught that while Vedic sacrifices, "puja" and devotional worship can lead one in the direction of "jnana" (true knowledge), they cannot lead one directly to "moksha". At best, they can serve as means to obtain moksha via shukla gati. Karma yoga is the way of doing our duties, in disregard of personal gains or losses. According to Sri Swami Sivananda,
Bhakti has been a common form of religious activity in world religions throughout human history. It is found in Christianity, Islam, Buddhism and Judaism. Bhakti (called "bhatti" in Pali language) has been a common aspect of Buddhism, where offerings and group prayers are made to images such the images of the Buddha and the "Bodhisattvas", or to deities such as wrathful deities. Karel Werner notes that Bhakti has been a significant practice in Theravada Buddhism, and states, "there can be no doubt that deep devotion or "bhakti / bhatti" does exist in Buddhism and that it had its beginnings in the