Reliquaries are sacrilege
The reliquary is a curious thing. A reliquary will often contain, rings, cloth, or bones from a religious or holy person. Many people who have heard of the Reliquaries of the saints think that they are only Christian icons. However there are reliquaries of Buddhist and Hindu holy persons.
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The thought behind the reliquary of course being that the possession or piece of the holy man or woman could cause miracles. There are many people over the centuries who would attest to such miracles. One could presume that the source of power of the relic comes from the holy saint within. Or perhaps one could make an assumption that divine forces are working through these sacred relics.