After a longish hiatus, and the nudging of the Spirit and the encouragement of a cousin, 1-2-3, re-plunge into this densely wonderful book...
Green Lion - My centering prayer mentor once said she woke up each morning a beginner. The Green Lion image so aptly embodies that principle.
Red Dragon - A dragon helped Harry, Ron and Hermione escape from Gringott's but I otherwise have had a negative image of dragons, e.g., the one devouring the child in Revelation 12:4: "His tail swept down a third of the stars of heaven and threw them to the earth. Then the dragon stood before the woman who was about to bear a child, so that he might devour her child as soon as it was born."
Sulphur - Salt - Mercury - Love this metaphor. The interdependent human chemistry of heart, mind, body and soul make fascinating, if uncomfortable bath salts in which to mystically soak.
*NOT* magic - So much of the wrong sort of evangelical Christianity is ill-disguised hocus pocus invoking the name of Jesus.
Purgation - Illumination - Union - See "wake up a beginner every morning," above.