The scripture Mandukya Upanishad describes how AUM, or "OM," is the basis of all the other letters while in the Sanskrit language and it is connected to the universe and also the human microcosm (analgous concepts exist in this kind of kabalistic will work given that the Sepher Yesirah). A https://mynichedirectory.com/listings13324225/the-baglamukhi-diaries