Relic (reliquia) literally means what remains. In the case of saints and martyrs, the term indicates their mortal remains or parts of them. Reliquaries are nothing more than the custody of these remains: caskets, urns, ampoules, boxes, precious fabrics welcome them and present them to the faithful in prayer.A precious casket displays and protects one of the remains of the Benedictine monk who became a saint: Guido.
His tibia, wrapped with a sash, is displayed on a backdrop of blue Indian silk, a reminder of heaven.
The text written on the band is the same as that engraved on the border framing the shrine: EX OSSIBUS SANCTI GUIDONIS ABBATIS A.D. 2000 DONUM DIOCESIS SPIRENSIS (Bones of the Holy Abbot Guido Year of Our Lord 2000, gift of the Diocese of Spira). Twelve flowers made of gold thread, freshwater and sea pearls, Indian gold spheres with fine punched plates emphasise the outline of the relic. Twelve semi-transparent glass spheres alternate along the frontal perimeter of the reliquary, with an equal number of spheres with violet hues, reminiscent of the colour associated with the liturgy of the dead, particularly penance and mourning.
The walls of the reliquary enclose, among garlands of fruit, reproductions of Speyer Cathedral and Pomposa Abbey, both dedicated to Mary.
The urn was made in 2000 by the Würzburg goldsmith Michael Amberg and his wife Fides on the occasion of the handing over of the relic, which had been kept in the German city of Speyer since the 11th century, to the Pomposa Abbey. In fact, Saint Guido continued his spiritual work even after his death, thanks to the continuous movement of his remains, , going far beyond what remains.  (Link to: Coming and going, the long journey of a saint’s remains)