(22) The green color alludes to the vegetation which covers the face of the earth, and therefore represents the robe of Nature. The black represents death and corruption as being the way to a new life and generation. "Except a man be born again, he cannot see the kingdom of God." (John iii. 3.) White, yellow, and red signify the three principal colors of the alchemical, Hermetical, universal medicine after the blackness of its putrefaction is over.

(108) But when the heat riseth up therein, then the green form inclineth to a half red or ruddy form, as when a carbuncle stone shineth from the green flash or beam of light.

(50) The ancients conceived the spirit of man to correspond with the color blue, the mind with yellow, and the body with red. Heaven is therefore blue, earth yellow, and hell--or the underworld--red. The fiery condition of the inferno merely symbolizes the nature of the sphere or plane of force of which it is composed. In the Greek Mysteries the irrational sphere was always considered as red, for it represented that condition in which the consciousness is enslaved by the lusts and passions of the lower nature. In India certain of the gods--usually attributes of Vishnu--are depicted with blue skin to signify their divine and supermundane constitution. According to esoteric philosophy, blue is the true and sacred color of the sun. The apparent orange-yellow shade of this orb is the result of its rays being immersed in the substances of the illusionary world.