"Koi bole Ram Ram Koi Khudai." --Kabir

(loosely, "Some call the creator Ram; some call him Allah.")

I have been thinking about mystical universalism in Aurobindo and its double-origin in Ramakrishna and Hegel.

An important point to remember in this matter is its ultimate origin in the Upanishads and the maintenance of this tradition by Kabir.

Also, because mysticism was respected in India to a far greater degree than in the West, this tradition was always much more prevalent and less underground.