Letters of Sri Aurobindo
Fragment ID: 8634
Descent and the Supramental Yoga 
We do not find the process of descent elsewhere – not in Patanjali or Sankhya or Hathayoga, not even in the Upanishads that I have read. In the Tantras there is the rising of the Kundalini but not the descent of peace or force. Why then do people not recognise the newness of your Yoga?
They will perhaps say that there are “equivalents” in the old things or if the descent is not spoken of as descent it still happens in the old Yogas.
21 March 1936