"Ripley is of the opinion that the fire must be extracted from the chaos and made visible. This fire is the Holy Ghost, who unites father and son. He is often represented as a winged old man, i.e., Mercurius in the form of the god of revelation, who is identical with Hermes Trismegistus and, together with the King and the King’s Son, forms the alchemical trinity. God wrought this fire in the bowels of the earth, just as he wrought the purging flames of hell, and in this fire God himself glows with divine love." — C. G. Jung Collected Works Volume 12 Psychology And Alchemy