13 Let these triumphant victims be brought to the place where Christ is the victim. But He upon the altar, Who suffered for all; they beneath the altar, who were redeemed by His Passion. I had destined this place for myself, for it is fitting that the priest should rest there where he has been wont to offer, but I yield the right hand portion to the sacred victims; that place was due to the martyrs. Let us, then, deposit the sacred relics, and lay them up in a worthy resting-place, and let us celebrate the whole day with faithful devotion.
Source: Letters (New Advent)