Hatha Yoga Pradipika examining Buddhist tantric commentaries and medieval yoga texts that came before the "Hatha Yoga Pradīpikā", Birch found that the adverbial uses of the word suggests that it meant "force". Birch found that, "Rather than the metaphysical explanation of uniting the sun (ha) and moon (ṭha), it is more likely that the name haṭha yoga was inspired by the meaning 'force'." Hatha Yoga Pradipika The Hatha Yoga Pradīpikā ( or Light on Hatha Yoga) is a classic fifteenth-century Sanskrit manual on hatha yoga, written by "Svāmi" Svātmārāma, who connects the teaching's lineage to Matsyendranath of the Nathas. It is among the
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