Johann Valentin Andreae 
The Chymical Wedding of Christian Rosenkreutz 

The Chymical Wedding is an allegoric story divided into Seven Days, or Seven Journeys, and which tells us how Christian Rosenkreuz was invited to go to a wonderful castle full of miracles, in order to assist the Chymical Wedding of the king and the queen. The story is symbolic of alchemy, the Sacred Marriage being the goal. Very esoteric stuff going on here.