Yoga focuses on the esoteric truths that underlie the religious teachings. Yoga is a science of the Spirit, every bit as rigorous as material science in its investigation of natural laws of the physical world.
Sri Aurobindo observes: “Behind every exoteric religion there is an esoteric Yoga, an intuitive knowledge to which its faith is the first step, inexpressible realities of which its symbols are the figured expression, a deeper sense for its scattered truths, mysteries of the higher planes of existence of which even its dogmas and superstitions are crude hints and indications. What Science does for our knowledge of the material world, replacing first appearances and uses by the hidden truths and as yet occult powers of its great natural forces and in our own minds beliefs and opinions by verified experience and a profounder understanding, Yoga does for the higher planes and worlds and possibilities of our being which are aimed at by the religions. Therefore all this mass of graded experience existing behind closed doors to which the consciousness of man may find, if it wills, the key, falls within the province of a comprehensive Yoga of knowledge, which need not be confined to the seeking after the Absolute alone or the knowledge of the Divine in itself or of the Divine only in its isolated relations with the individual human soul.”
The realisation of the Absolute is an essential part of the total realisation, which must turn back and embrace the Divine manifestation from that standpoint. “To rise to the pure Self-being steadfastly held to as the summit of our subjective self-uplifting, we may from that height possess our lower selves even to the physical and the workings of Nature which belong to them.”
Sri Aurobindo, The Synthesis of Yoga, Part Two: The Yoga of Integral Knowledge, Chapter 20, The Lower Triple Purusha, pg. 441