Think of the teachings of Zarathustra, that the followers of Zoroastrian religion have left their country and have forgotten their original language for many, many years; and if they have any sign of it, it is in the form, the words of Zarathustra which they still keep. Nothing of their origin they know, except this one thing, the teaching of Zarathustra, which was given to their souls. Brahmans hold their Gayatris of Vedanta and the words of Krishna in reverence, in esteem. And you cannot imagine to what extent they esteem it, that they would build a temple, a shrine, in order to keep that little book of Krishna. Muhammadans, no one can imagine what appeal the words of the Prophet make upon a Muslim.