Sri Aurobindo
Letters on Yoga
2. Integral Yoga and Other Paths
Fragment ID: 106
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Sri Aurobindo — Unknown addressee
March 14, 1937
Veda and Vedanta are one side of the One Truth; Tantra with its emphasis on Shakti is another; in this yoga all sides of the Truth are taken up, not in the systematic forms given them formerly but in their essence, and carried to the fullest and highest significance. But Vedanta deals more with the principles and essentials of the divine knowledge and therefore much of its spiritual knowledge and experience has been taken bodily into the Arya. Tantra deals more with forms and processes and organised powers – all these could not be taken as they were, for the integral yoga needs to develop its own forms and processes; but the ascent of the consciousness through the centres and other Tantric knowledge are there behind the process of transformation to which so much importance is given by me – also the truth that nothing can be done except through the force of the Mother.
The process of the Kundalini awakened rising through the centres as also the purification of the centres is a Tantric knowledge. In our yoga there is no willed process of the purification and opening of the centres, no raising up of the Kundalini by a set process either. Another method is used, but still there is the ascent of the consciousness from and through the different levels to join the higher consciousness above; there is the opening of 
the centres and of the planes (mental, vital, physical) which these centres command; there is also the descent which is the main key of the spiritual transformation. Therefore, there is, I have said, a Tantric knowledge behind the process of transformation in this yoga.
Current publication:
Sri Aurobindo. Letters on Yoga // SABCL.- Volume 22. (≈ 28 vol. of CWSA).- Pondicherry: Sri Aurobindo Ashram, 1971.- 502 p.
Other publications: