Thesauri et armamentarii medico-chymici appendix [...] Testamentum Hadrianeum

The Testament of Hadrian

The heat should be like that of a hen, or how a fetus grows in the mother’s womb. All labor will be in vain and the care useless if you do not rule the subject fire with a prudent hand.
Thus, when the Snowy Niveâ and Red Rubeoque spouses are joined in the closed chamber, adore the divine Power of those above with suppliant prayer. Pray that you may see the husband mixed with his wife in this work.
Behold, in a short time, you will see the two mixed into one: a black Ethiopian Æthiopem nigrum and the head of a black raven corvi caput atri symbols for the Nigredo or blackening stage of alchemy!
Know that you must take the greatest care in this: do not let the closed door of the glass chamber be opened until the enclosed contents have put on a perfect redness, having been made most fit to generate an offspring like themselves.
Hence, the King of the wise Rex sophorum forbids the quiet of the slumbering mistress to be interrupted. Let her not feel a touch until it pleases her.
Once enclosed and then narrowed in their vessel, they begin to give off sweat. Subtle things begin to rise on high. The more they are cooked by the ruling fire, the greater and stronger the army of spirits becomes.

You are a garden wisdom herself sings this royal song, referencing the Song of Solomon.
A garden enclosed Hortus conclusus, a sealed fountain Fons obsignatus, the flower
of a pleasant garden, the living spring of a stream flowing
from Lebanon Libano: Arise, O North Wind, and come, O South Wind,
Arise, blow through my garden, that its spices may flow out.
Behold, the sweet voice of my coming friend is here.
Behold, he leaps upon the mountains, he skips over the hills,