What name can man give to God? How can the Infinite be bound by any finite word? All that language can express must be finite, since it is itself finite. Yet it is very difficult for mortals to think or speak of anything without calling it by a definite name. Knowing this, the Sages gave to the Supreme the name A-U-M which stands as the root of all language. The first letter "A" is the mother-sound, being the natural sound uttered by every creature when the throat is opened, and no sound can be made without opening the throat. The last letter "M," spoken by closing the lips, terminates all articulation. As one carries the sound from the throat to the lips, it passes through the sound "U." These three sounds therefore cover the whole field of possible articulate sound. Their combination is called the Akshara or the imperishable word, the Sound-Brahman or the Word God, because it is the most universal name which can be given to the Supreme. Hence it must be the word which was "in the beginning" and corresponds to the Logos of Christian theology. It is because of the all-embracing significance of this name that it is used so universally in the Vedic Scriptures to designate the Absolute. XVI This Word is indeed Brahman. This Word is indeed the Supreme. He who knows this Word obtains whatever he desires. XVII This is the best Support, This is the highest Support; he who knows this Support is glorified in the world of Brahman. This sacred Word is the highest symbol of the Absolute. He who through meditating on It grasps Its full significance, realizes the glory of God and at once has all his desires satisfied, because God is the fulfilment of all desires. XVIII This Self is never born, nor does It die. It did not spring from anything, nor did anything spring from It. This Ancient One is unborn, eternal, everlasting. It is not slain even though the body is slain. XIX If the slayer thinks that he slays, or if the slain thinks that he is slain, both of these know not. For It neither slays nor is It slain. XX The Self is subtler than the subtle, greater than the great; It dwells in the heart of each living being. He who is free from desire and free from grief, with mind and senses tranquil, beholds the glory of the Atman. Although this Atman dwells in the heart of every living being, yet It is not perceived by ordinary mortals because of Its subtlety. It cannot be perceived by the senses; a finer spiritual sight is required. The heart must be pure and freed from every unworthy selfish desire; the thought must be indrawn from all external objects; mind and body must be under control; when the whole being thus becomes calm and serene, then it is possible to perceive that effulgent Atman. It is subtler than the subtle, because It is the invisible essence of every thing; and It is greater than the great because It is the boundless, sustaining power of the whole universe; that upon which all existence rests. XXI