Volatile and Fixed Superior and inferior
"The Heat causes earthly things to be penetrated by a Spiritual Force, of which it is said in the Turba : Spiritualize the bodies and make Volatile that which is Fixed. Of which Rhazes reminds in his " Light of Lights," as follows : "A heavy body cannot be made light without the help of a light body, nor can a light body be kept pressed down to the ground without the aid of a heavy body."
— Splendor solis; alchemical treatises of Solomon Trismosin
"Ut tentes interiora terrae, rectificando invenies occultum lapidem veram Medicinam.": "That you may explore the inner parts of the Earth; by rectifying, you will find the hidden stone, the true medicine." "Confusa Materia sive Chaos Natura": "Confused Matter or the Chaos of Nature" "Omnia in Omnibus": “Everything in Everything" "Fixum si solves, faciesque volare solutum / Et volucrem figes, faciet te vivere tutum.": "If you dissolve the fixed and make the volatile fly, and fix the volatile, it will make you live safely."