The Twelve Operations · Operation 10 · Citrinitas
Coagulatio Coagulation
In the vessel. The matter thickens and sets into a solid body that holds its form. Older texts also call it congelation.
In a life. Spirit and body setting into a durable self. It is lived as arriving at a version of yourself that no longer shifts with every outside pressure. The stone holds.
Where do you now keep your shape under pressure that once would have bent you?
The full section on coagulation, with the other eleven operations and the four stages, is in The Magnum Opus.