"The basis of Kabir’s belief was not, as has been commonly supposed, Vaisnava bhakti or Sufism but tantric yoga. Kabir’s name is certainly a Muslim one, but it has always been clear that his knowledge of Islam was relatively slight. In contrast to this there is a wealth of hatha-yoga terminology and a thought-structure with obvious resemblances to that of the Naths. In the light of this contrast the theory that Kabir belonged to a caste which had recently been converted from tantric yoga to Islam is at once convincing."