The Yezidis offer their worship to Šeiḫ ‘Adi, usually when they assemble at his shrine. This is his tomb within a temple. The latter lies in a narrow valley which has only one outlet, as the rock rises on all sides except where a small stream forces its way into a large valley beyond. The tomb stands in a courtyard, and is surrounded by a few buildings in which the guardians and the servants of the sanctuary live. In the vicinity are scattered a number of shacks, each named after a šeiḫ, and supposed to be his tomb. Toward sunset these sacred places are illuminated by burning sesame oil lamps, putting one at the entrance to each tomb in token of their respect; the light lasts but a short time. There are also a few edifices, each belonging to a Yezidi district, in which the pilgrims reside during the time of the feast; so that each portion of the valley is known by the name of the country of those who resort thither. On the lintel of the doorway of the temple, various symbols are engraved,—a lion, a snake, a hatchet, a man and a comb.[145] Their mystical meaning is unknown. They are regarded as mere ornaments placed there at the request of those who furnished money for building the temple. The interior of the temple is made up of an oblong apartment which is divided into three compartments, and a large hall in the centre which is divided by a row of columns; and arches support the roof. To the right of the entrance are a platform, and a spring of water coming from the rock. The latter is regarded with great veneration, and is believed to be derived from the holy well of Zamzam at Mecca. It is used for the baptism of children and for other sacred purposes. Close by there are two small apartments in which are tombs of the saints and of some inferior personage. In the principal halls a few lamps are usually burning, and at sunset lights are scattered over the walls. The tomb of Šeiḫ ‘Adi lies in the inner room, which is dimly lighted. The tomb has a large square cover, upon which is written Ayat al-Kursi, that is, the verse of the throne, which is the 256th verse of surat-al-Baḳarah, or Chapter II of the Koran. “God. There is no God but He, the Living, the Abiding. Neither slumber nor sleep seizeth Him. To Him belongeth whatsoever is in heaven and whatsoever is on earth. Who is he that can intercede with Him but by His own permission? He knoweth what has been before them and what shall be after them; yet naught of His knowledge do they comprehend, save what he willeth to reveal. His throne reacheth over the heavens and the earth, and the upholding of both burdeneth Him not. He is the High, the Great.”