92: ..."the Veda, the world song in human sound that was given to man for his use metaphysically from the standpoint of its meaning, and magically from the standpoint of its proper recitation.  The world song obeying certain laws of proportions or the Pythagorean arithmetic and imparting its thrilling effect to the domain of cosmic substance, has induced the latter into a crystallisation process that the philosopher Plato called the geometry of the cosmos.  The various forms that are observed from a molecule of salt crystal to the wonderfully complex organism of the human body are all the structures of the great cosmic geometriser known as Viswakarma, the deva carpenter in our Puranic writings.  The revealed Veda whose function is to trace out the cosmos from one basic sound substance symbolised as Om, necessarily split itself into a primal three, a subsequent seven vowels and then into seven notes and then into seven combinations of the seven notes on a basic three and then into hymns.  All these falling into the material field of the consonants, gradually produced the manifested crystallised forms which are collectively taken as the universe.  The world to a thinker is the magic motion produced by the Orphean singer or the Hindu Saraswati...."
"In the Vishnu Purana, second part, you will see that the power that resides in the sun is represented as the three-sided Vedic power, that the power as Rik creates, as Yajus preserves and as Sama destroys.  Rik is therefore the creative song of the Devas in the Sun.  Yajus the song of preservation and Sama the song of destruction of the Devas in the sun and construction of the Devas in the moon.  Rik therefore is the song of the Devas and Sama the song of the Pitris and Yajua the intermediate song.  The functions of the Vedas must of course vary according to the standpoint.  If you take the Pitris, Sama is their constructive song, and Rik is their destructive note.  The three Vedas correspond to every trinity in Nature and I request you will search for further information in the much abused Puranas...."
"Of the various karmic agencies wielded by man in the way of moulding himself and surroundings, sound or speech is the most important, for, to speak is to work in ether which of course rules the lower quaternary or elements, air, fire, water and earth.  Human sound or language contains therefore all the elements required to move the different classes of Devas and those elements are of course the vowels and the consonants.  The details of the philosophy of sound in its relation to the devas who preside over the subtle world, belong to the domain of true Mantra Sastra which of course is in the hands of the knowers."—From Some Thoughts on the Gita.