The differences among the religions of the world are due to
the varying types of minds. So long as the powers of the mind are various, it
is certain that men’s judgements and opinions will differ one from another. If,
however, one single, universal perceptive power be introduced—a power
encompassing all the rest—those differing opinions will merge, and a spiritual
harmony and oneness will become apparent. For example, when the Christ was made
manifest, the minds of the various contemporary peoples, their views, their
emotional attitudes, whether they were Romans, Greeks, Syrians, Israelites, or
others, were at variance with one another. But once His universal power was
brought to bear, it gradually succeeded, after the lapse of three hundred
years, in gathering together all those divergent minds under the protection,
and within the governance, of one central Point, all sharing the same spiritual
emotions in their hearts.
(‘Abdu’l-Baha, ‘Selections from the Writings of
‘Abdu’l-Baha’)