These are usually found in the main courtyard (and at royal tombs). Usually stone lanterns are made of granite, beautifully decorated with different motifs. Near the top there is a square or octagonal shaped section where the oil lamp or candle was burned; the light is diffused through four openings, one in each direction-. These lanterns are often lit so that the monks and nuns can see their way to the Main Hall for the 3 a.m. chanting ceremony.