The text attributed to the Indus are the Vedas. The Vedas – are a collection of 1008 hymns on theology, social institutions, legal systems, ethics, cosmology, philosophy and science. The Rig Veda is considered an authoritative sacred work by the Hindu faith. Its myths, male and female Vedic Gods. Ganesha, Krishna, Indra, Shiva, Vivasvat, Agni, Shakti and Parvati personified the forces of nature.
Spiritual texts include the Brahmins and the Upanishads. The Brahmins (Brahmanas), written about 800-600BC, deal with the rules and regulations for rituals performed by the Brahmin priests. There are over 200 Upanishads but only 10-12 are considered the most authoritative.
The Bhagavad Gita (the Song of the Blessed Lord), written around 300BC, is a spiritual poem on yoga. The ‘Gita’ is part of the eight chapter epic called the Mahabharata. The Bhagavad Gita is a discourse delivered by Krishna (the Lord) to Arjuna (the hero) expounding on the ultimate goal of life. Between 200-800BC Patanjali detailed the entire sum of knowledge about Yoga in 196 aphorisms (sutras), referred to also as Raja Yoga. Patanjali is part of the classical yoga era, when thousands of yoga asanas were still being practiced. The Yoga Sutras of Patanjali is considered the authoritative text on classical yoga.