As you read the description of Arthur's dream, realize that it connects with the great traditional image of the Wheel of Fortune (no game show jokes, please). For some background on the medieval idea of fortune, go to http://www.millcomm.com/~markland/engl568/fortunebio.html 

The image in Arthur's dream is a common one, similar to the one below, which shows the King at the top and the changing fortunes of those ascending or falling in fortune.

Picture at top of page: "Arthur Leading the Charge at Mount Badon"
by George Wooliscroft & Louis Rhead 

Courtly Love and the Chivalric Ideal

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Extra Credit