How Sir Launcelot told his advision to a woman, and how she expounded it to him. And then he told her altogether word by word, and the truth how it befell him at the tournament. And after told her his advision that he had had that night in his sleep, and prayed her to tell him what it might mean, for he was not well content with it. Ah, Launcelot, said she, as long as ye were knight of earthly knighthood ye were the most marvellous man of the world, and most adventurous. Now, said the lady, sithen ye be set among the knights of heavenly adventures, if adventure fell thee contrary at that tournament have thou no marvel, for that tournament yesterday was but a tokening of Our Lord. And not for then there was none enchantment, for they at the tournament were earthly knights. The tournament was a token to see who should have most knights, either Eliazar, the son of King Pelles, or Argustus, the son of King Harlon. But Eliazar was all clothed in white, and Argustus was covered in black, the which were [over]come.
All what this betokeneth I shall tell you. The day of Pentecost, when King Arthur held his court, it befell that earthly kings and knights took a tournament together, that is to say the quest of the Sangreal. The earthly knights were they the which were clothed all in black, and the covering betokeneth the sins whereof they be not confessed. And they with the covering of white betokeneth virginity, and they that chose chastity. And thus was the quest begun in them. Then thou beheld the sinners and the good men, and when thou sawest the sinners overcome, thou inclinest to that party for bobaunce and pride of the world, and all that must be left in that quest, for in this quest thou shalt have many fellows and thy betters. For thou art so feeble of evil trust and good belief, t............