Revan was a Sith Lord and the namesake of the Sith Eternal army's Revan Legion. Since the history of the Sith was kept hidden from the galaxy, only Sith cultists knew the significance of Revan's name. In 3 ABY, cultists searching the catacombs beneath the Sith Citadel on the planet Exegol repeated Revan's name in something similar to a chant, along with the names of other Sith.
