Jnana yoga understood as "realization or gnosis", referring to a "path of study" wherein one knows the unity between self and ultimate reality called Brahman in Hinduism. This explanation is found in the ancient Upanishads and the Bhagavad Gita. Jñāna yoga is the path towards attaining "jnana". It is one of the three classical types of yoga mentioned in Hindu philosophies, the other two being karma yoga and bhakti. In modern classifications, classical yoga, being called Raja yoga, is mentioned as a fourth one, an extension introduced by Vivekananda. Jnana yoga, states Stephen Phillips, is the "yoga of meditation". Of the three
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