Companionship with Saint Mercurius
The principal detail preserved about Venerable Paisius concerns his friendship with Saint Mercurius of the Far Caves, commemorated on November 24. The Canon to the Kiev Caves monks venerated in the Far Caves relates that the two were connected by oneness of mind and brotherly love, that they were inseparable, and that they lived together in the same cell.
After their repose the two were placed in the same grave. In later usage their relics were separated into distinct reliquaries, though they remain among the company of saints venerated together in the Far Caves.