Saguna brahman
Saguna Brahman is a concept of ultimate reality in Hinduism, close to the concept of immanence, the manifested divine presence.
Yoga
Rājarshi conveys his estimation of the historical synthesis of the School of Yoga which he holds introduces the principle of "Isvara" as Saguna Brahman, to reconcile the extreme views of Vedanta's "advandva" and Sankya's "dvandva":"Introducing the special tattva called Ishvara by yoga philosophy is a bold attempt to bring reconciliation between the transcendental, nondual monism of vedanta and the pluralistic, dualistic, atheism of sankhya. The composite system of yoga philosophy brings the two doctrines of vedanta and sankya closer to each other and makes them understood as the presentation of the same reality from two different points of view. The nondual approach of vedanta presents the principle of advandva The dualistic approach of sankhya presents truth of the same reality but at a lower empirical level, rationally analysing the principle of dvandva. Whereas, yoga philosophy presents the synthesis of vedanta and sankhya, reconciling at once monism and dualism, the supermundane and the empirical."