Hence ‘he/she’ (Mercury is oft pictured as hermaphrodite) is known to alchemists as the White Queen.
According to Johannis de Monte Raphim (Deutsches Theatrum Chemicum, Nuremberg, 1728):
“The process laboratory-workers wanted to rule him (Mercurius) and force him into (the) process. But he constantly escapes, and if one thinks about him, he turns into thoughts, and if one passes judgment upon him, he is judgment itself.”
Mercury is prized by alchemists because, as the result of ‘his/her’ own divided nature, ‘he/she’ unites opposites. Keeping in mind that the alchemical process is all about separation, purification, and reunification, we begin to grasp the benefits of Mercury. Keeping in mind that Mercury is poisonous however, we can also begin to understand how (as Johannis de Monte Raphim warns us) it might all go terribly wrong.
Mercury = psychopomp = guide between the unconscious and the conscious.
The aim of the alchemical game is to bring up all the dross and impurities (as shown by your natal chart) to the surface (consciousness) so that you can deal with them. How else will you be able to assemble them, purified, back together again?
For example, the heroine of Love’s Alchemy, Judith Shakespeare, has a Mars/Saturn conjunction in the 12th house in Scorpio.
Mars/Saturn contacts are dangerously flammable:
Mars = passion
Saturn = fear & inadequacy
Whilst her Mars/ Saturn contact operates unconsciously, Judith’s long-term personal relationships will be disastrous. Initially she is highly passionate (Mars). But as her Saturn kicks in (as it must with any form of commitment), she becomes increasingly cold toward her lover and potentially even violent.
Enter Mercury to facilitate the active dialogue and transference which is at the base of all therapeutic work.
With Mercury, Judith’s Saturn can help Mars become more considered and less impatient whilst her Mars can help her Saturn achieve his carefully conceived plans. It’s fairly obvious then that if Judith is to be successful in her alchemical transformation, she must find someone in whom she can confidently confide.
She and I are both hopeful that someone will be Master Francis, the character who is meant to play the King to her Queen.
Because Mercury, or the White Queen, is so fluid, she needs an active force to define and shapes her – this force is the male principle of sulphur known to alchemists as the Red King.
The union of Red King and White Queen is often called the alchemical marriage. In illustrations, it is depicted as courtship and sex. Sometimes they are garbed, as if just starting to be brought together, offering each other flowers. Sometimes they are naked, preparing for consummation of their marriage that will eventually lead to an allegorical offspring, that all important elixir, the Philosopher’s Stone.
Does Judith want to find the Philosopher’s Stone?
Will she be successful?
That remains to be seen.