If only we could recognize the inner voice, we would see that the different scriptures all contain words spoken by one and the same voice. Some hear the voice, others only hear the words, just as in nature some see only the branches and others the roots of the tree; but all these different scriptures and ways of worship and of contemplating God are given for one purpose: the realization of unity. In unity resides the happiness and illumination of man, and his guidance in life. We all know unity by name, but most of us think of it as uniformity. The Vedanta for thousands of years in all its prayers and mantrams voiced this central theme: unity, the oneness of all. The Qur'an with all its warnings expresses in one essential sura the Being of God: that not only in the unseen, but in all that is seen there is one underlying current; and the Bible says that we live and move and have our being in God.
Of all the millions of believers in God perhaps only one makes God a reality, and that is because the picture man makes of God is as limited as himself. The knowledge of God is beyond man's reason. Man only perceives things he is capable of perceiving. He cannot raise his imagination above what he is used to, and he cannot reach beyond his imagination to where the being of God is.