“THE KEY TO THE CASTLE”
Sir Galahad defeats the seven knights but he does not slay them, and they turn and flee. This signifies that although the seven sins can no longer trouble the pure soul, yet they are still about in the world.
Passing the outer gate, Sir Galahad is greeted by the keeper of the inner gate, an aged man who blesses him and gives him the key to the castle. With helmet in hand, Sir Galahad kneels reverently before the saintly man who greets him kindly as he holds toward him the great key.