This fitted exactly in his empty sheath, and all vowed that it was evidently meant for him.
That selfsame night, after evensong, when all the knights were seated about the Round Table at Camelot, they heard a long roll of thunder, and felt the palace shake.

The brilliant lights held by the statues of the twelve conquered kings grew strangely dim, and then, gliding down upon a beam of refulgent celestial light, they all beheld a dazzling vision of the Holy Grail.

Covered by white samite, and borne by invisible hands, the sacred vessel was slowly carried all around the great hall, while a delicious perfume was wafted throughout the huge edifice.

All the knights of the Round Table gazed in silent awe at this resplendent vision, and when it vanished as suddenly and as mysteriously as it had come, each saw before him the food which he liked best.
Speechless at first, and motionless until the wonted light again illumined the hall, the knights gave fervent thanks for the mercy which had been vouchsafed them, and then Lancelot, springing impetuously to his feet, vowed that he would ride forth in search of the Holy Grail and would know no rest until he had beheld it unveiled.

This vow was echoed by all the knights of the Round Table; and when Arthur now questioned them closely, he discovered that none had seen the vessel unveiled.