"The Bhagavadgita combines many different elements from Samkhya and Vedanta philosophy. In matters of religion, its important contribution was the new emphasis placed on devotion, which has since remained a central path in Hinduism. In addition, the popular theism expressed elsewhere in the Mahabharata and the transcendentalism of the Upanishads converge, and a God of personal characteristics is identified with the brahman of the Vedic tradition. The Bhagavadgita thus gives a typology of the three dominant trends of Indian religion: dharma-based householder life, enlightenment-based renunciation, and devotion-based theism."
January 1, 1970
https://en.wikiquote.org/wiki/Monism