We pass to the north aisle of the choir and proceed to the ambulatory, processional path, or retro-choir. Here, at the back of the altar, was the chief shrine, where the relics of some great saint were preserved under a gorgeous cover decorated with gold and silver and precious jewels, to which crowds of pilgrims flocked, and there prayed and gazed upon the wondrous shrine, and made their offerings. The steps and pavement leading to the shrine often still show by their worn condition the evidence of the tread of countless numbers of pilgrims. Near the shrine was a watching chamber, where a monk stayed to guard the shrine and its treasures. Eastward of the ambulatory is usually the Lady Chapel, where the altar of the Virgin stood; and here, and in other parts of the church, are numerous chantry chapels, sometimes built on to the church, or in the church itself, containing effigies of the founders and altar tombs, where masses were said by specially-endowed chantry priests for the repose of the souls of the deceased and their families. Some effigies of knights and warriors have their legs crossed. It is another popular error to suppose that this fashion of representing the deceased had anything to do with the Crusades. Beneath some portion of the church we find a crypt with the remains of numerous altars, where masses were said for the souls of those who lie buried here. A door on the south side of the church leads to the cloister court; immediately on the left as we traverse the east walk we see the slype or passage leading to the monks' cemetery. Another door from this walk leads to the chapter-house, where the monks assembled daily to arrange the affairs of the monastery, enforce its discipline, assign the duties of the day and transact other business. On the same side of the cloister was the dormitory; the refectory was on the south; the uses of the buildings on the west side varied in different houses.