Mercurius (n.) is the spirit that penetrates and sustains all things, from stones to living organisms — a snake dwelling inside the earth, the chthonic God.
Mercurius (n.) is spirit that has become earth, a fire that is also water, opening the locked problems of the work with his own genius.
Mercurius (n.) is the alchemists' guide and their tempter, their good luck and their ruin — lowest as prima materia and highest as the philosopher's stone.
Mercurius (n.) as a planet stands nearest the sun and so is kin to gold; as quicksilver, he dissolves the gold and extinguishes its sunlike brilliance.
Mercurius (n.) was labelled the servus fugitivus, the runaway, as the alchemists projected their own urge to flee: they never saw they were chasing a projection — today the running away is plainly the dreamer's, and so a moral question.
Mercurius (n.) must be led with great care, for given half a chance he will slip away and leave you to a world of trouble.
Mercurius (n.) is metallic yet liquid, matter yet spirit, cold yet fiery, poison yet healing draught — a symbol uniting all opposites, at the beginning and end of the work.
Mercurius (n.) holds a substance that never dies — a fascination that never entirely disappeared, even wrapped in the fool's garb of goldmaking.
Mercurius (n.) is the elusive third party in the analytic alliance: flitting between patient and doctor, impish, teasing, sometimes diabolical — yet given by the alchemists names near to deity.
Mercurius (n.) is, in his crude form as prima materia, the Original Man scattered through the physical world, and in sublimated form that totality restored — the peacemaker between warring elements.
Mercurius (n.) is the archer of alchemy, one with Cupid: in chemistry his arrow dissolves gold, in morals it wounds the soul with passion.