"No matter what one may study in the S.D. let the mind hold fast, as the basis of its ideation to the following ideas: (a) The Fundamental Unity of All Existence... It is that existence is One Thing, not any collection of things linked together... (b) The second idea to hold fast to is that there is no dead matter. Every last atom is alive... (c) The third basic idea to be held is that Man is the Microcosm. As he is so, then all the Hierarchies of the Heavens exist within him. But in truth there is neither Macrocosm nor Microcosm but One Existence... (d) Fourth and last basic idea to be held is that expressed in the Great Hermetic Axiom. It really sums up and synthesises all the others. As is the Inner, so is the Outer; as is the Great so is the Small; as it is above, so it is below; there is but One Life and Law; and he that worketh it is One. Nothing is Inner, nothing is Outer; nothing is Great, nothing is Small; nothing is High, nothing is Low, in the Divine Economy. No matter what one takes as study in the S.D. one must correlate it with those basic ideas."