Letters of Sri Aurobindo
Fragment ID: 8677
(this fragment is largest or earliest found passage)
Sri Aurobindo — Unknown addressee
July 12, 1936
Tibetan Yoga 
People here became very enthusiastic about that book by Evans-Wentz. But I think their reading of it may be a bit uncritical. They found many things in it that are similar to our yoga, but they may be missing whatever defects or misrepresentations the book may contain.
Somebody sent me some extracts about ways of meditation which were good. There are elements in most Yogas which enter into this one, so it is not surprising if there is something in Buddhism also. But such notions as a Higher Evolution beyond Nirvana seem to me not genuinely Buddhistic, unless of course there is some offshoot of Buddhism which developed something so interpreted by the author. I never heard of it as part of Buddha’s teachings – he always spoke of Nirvana as the goal and refused to discuss metaphysically what it might be.
12 July 1936
[Largest or earliest found passage: ] Sri Aurobindo. Letters on Himself and the Ashram // CWSA.- Volume 35. (≈ 26 vol. of SABCL).- Pondicherry: Sri Aurobindo Ashram, 2011.- 658 p.
Sri Aurobindo. Letters on Yoga // SABCL.- Volume 22. (≈ 28 vol. of CWSA).- Pondicherry: Sri Aurobindo Ashram, 1971.- 502 p.
Sri Aurobindo. Letters on Yoga. II // CWSA.- Volume 29. (≈ 22-24 vol. of SABCL).- Pondicherry: Sri Aurobindo Ashram, 2013.- 522 p.