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
Aranyaka however, neither are homogeneous in content nor in structure. "Aranyakas" are sometimes identified as "karma-kanda" (कर्मकाण्ड) / (कांड), ritualistic action/sacrifice section), while the Upanishads are identified as "jnana-kanda" (ज्ञानकाण्ड /कांड) knowledge/spirituality section). In an alternate classification, the early part of Vedas are called Samhitas and the ritualistic commentary on the mantras and rituals are called the Brahmanas which together are identified as the ceremonial "karma-kanda", while "Aranyakas" and "Upanishads" are referred to as the "jnana-kanda". In the immense volume of ancient Indian Vedic literature, there is no absolute universally true distinction between "Aranyakas" and "Brahmanas". Similarly, there is no absolute