Book XVII - Chapter XV - How Sir Launcelot was to-fore the door of the chamber wherein the Holy Sangreal was.
THEN he enforced him mickle to undo the door. Then he listened and heard a voice which sang so sweetly that it seemed none earthly thing; and him thought the voice said: Joy and honour be to the Father of Heaven. Then Launcelot kneeled down to-fore the chamber, for well wist he that there was the Sangreal within that chamber. Then said he: Fair sweet Father, Jesu Christ, if ever I did thing that pleased Thee, Lord for Thy pity never have me not in despite for my sins done aforetime, and that Thou show me something of that I seek. And with that he saw the chamber door open, and there came out a great clearness, that the house was as bright as all the torches of the world had been there.
So came he to the chamber door, and would have entered. And anon a voice said to him: Flee, Launcelot, and enter not, for thou oughtest not to do it; and if thou enter thou shalt for-think it. Then he withdrew him aback right heavy. Then looked he up in the midst of the chamber, and saw a table of silver, and the Holy Vessel, covered with red samite, and many angels about it, whereof one held a candle of wax burning, and the other held a cross, and the ornaments of an altar. And before the Holy Vessel he saw a good man clothed as a priest. And it seemed that he was at the sacring of the mass. And it seemed to Launcelot that above the priest's hands were three men, whereof the two put the youngest by likeness between the priest's hands; and so he lift it up right high, and it seemed to show so to the people. And then Launcelot marvelled not a little, for him thought the priest was so greatly charged of the figure that him seemed that he should fall to the earth. And when he saw none about him that would help him, then came he to the door a great pace, and said: Fair Father Jesu Christ, ne take it for no sin though I help the good man which hath great need of help.
Right so entered he into the chamber, and came toward the table of silver; and when he came nigh he felt a breath, that him thought it was intermeddled with fire, which smote him so sore in the visage that him thought it brent his visage; and therewith he fell to the earth, and had no power to arise, as he that was so araged, that had lost the power of his body, and his hearing, and his seeing. Then felt he many hands about him, which took him up and bare him out of the chamber door, without any amending of his swoon, and left him there, seeming dead to all people.
So upon the morrow when it was fair day they within were arisen, and found Launcelot lying afore the chamber door. All they marvelled how that he came in, and so they looked upon him, and felt his pulse to wit whether there were any life in him; and so they found life in him, but he might not stand nor stir no member that he had. And so they took him by every part of the body, and bare him into a chamber, and laid him in a rich bed, far from all folk; and so he lay four days. Then the one said he was alive, and the other said, Nay. In the name of God, said an old man, for I do you verily to wit he is not dead, but he is so full of life as the mightiest of you all; and therefore I counsel you that he be well kept till God send him life again.