"The basis of the Swami's claim is a story that Swami Vivekananda's guru Paramahansa Ramakrishna (1836-86) once, in 1866, dressed up as a Muslim and then continued his spiritual exercises until he had a vision; and likewise as a Christian in 1874. If at all true, these little experiments shouldn't be given too much weight, considering Ramakrishna's general habit of dressing up a little for devotional purposes, e.g. as a woman, to experience Krishna the lover through the eyes of His beloved Radha (not uncommon among Krishna devotees in Vrindavan); or hanging in trees to impersonate Hanuman, Rama's monkey helper. But is the story true? Ram Swarup finds that it is absent in the earliest recordings of Ramakrishna's own talks. It first appears in a biography written 25 years after Ramakrishna's death by Swami Saradananda (Sri Ramakrishna, the Great Master), who had known the Master only in the last two years of his life. Even then, mention (on just one page in a 1050-page volume) is only made of a vision of a luminous figure. The next biographer, Swami Nikhilananda, ventures to guess that the figure was 'perhaps Mohammed'... In subsequent versions, this guess became a dead certainty, and that 'vision of Mohammed' became the basis of the doctrine that he spent some time as a Muslim, and likewise as a Christian, and that he 'proved the truth' of those religions by attaining the highest yogic state on those occasions. As the alleged vision of Jesus was slightly more glorious than that of Mohammed, Ram Swarup sarcastically suggests new horizons to the 'equal truth of all religions' school: 'This difference could provide much scope for future disputants. One school may hold that while all prophets are equal, some are more equal than others.'"