The answer is "Baldachin" which symbolizes the holy sepulchers that covers the main altar in the apse of san clemente.
Baldachin is like a canopy, that is rich embroidered cloth of gold and silk. Usually, when you listen individuals utilizing this term, they're discussing those detached stone shade coating a sacrificial stone alternately holy graves done a catholic church.
Baldachin is a canopy made of different material, mostly used in religious ceremony of church or also placed over throne and an altar.
