Yoga Sutras of Patanjali at the same time. The Vedanta-Sramana traditions, iconolatry and Vedic rituals can be identified with the Jnana marga, Bhakti marga and the Karma marga respectively that are outlined in the Bhagavad Gita. The "Yoga Sutras" are built on a foundation of Samkhya philosophy, an orthodox (Astika) and atheistic Hindu system of dualism, and are generally seen as the practice while Samkhya is the theory. The influence of Samkhya is so pervasive in the Sutras that the historian Surendranath Dasgupta went so far as to deny independent categorization to Patañjali's system, preferring to refer to it as "Patanjala Samkhya", similar to
Bhakti movement concept of the Ultimate Reality as formless, without attributes or quality. "Saguna" Brahman, in contrast, was envisioned and developed as with form, attributes and quality. The two had parallels in the ancient pantheistic unmanifest and theistic manifest traditions, respectively, and traceable to Arjuna-Krishna dialogue in the Bhagavad Gita. It is the same Brahman, but viewed from two perspectives, one from "Nirguni" knowledge-focus and other from "Saguni" love-focus, united as Krishna in the Gita. "Nirguna" bhakta's poetry were "Jnana-shrayi", or had roots in knowledge. "Saguna" bhakta's poetry were "Prema-shrayi", or with roots in love. In Bhakti, the emphasis is reciprocal love