features in particular directions around the temple play important roles as well. This custom continued for a long time. Eight centuries after the founding of Enryaku-ji, the Tokugawa shogunate established Kan'ei-ji in a similar direction for the protection of their Edo Castle. Its mountain-name, Mount Tōei (東叡山 Tōei-zan), takes a character from Mount Hiei (比叡山 Hiei-zan), and can be interpreted as meaning "the Mount Hiei of the East." Kamakura's Tsurugaoka Hachiman-gū is now only a Shinto shrine but, before the of 1868, its name was and it was also a Buddhist temple, one of the oldest of the city. The temple and the city were built with Feng Shui in mind. The present location was carefully chosen as the most propitious after consulting a diviner because it had a mountain to the north (the ), a river to the east (the Namerikawa) and a great road to the west (the ), and was open to the south (on Sagami Bay). Each direction was protected by a god: Genbu guarded the north, Seiryū the east, Byakko the west and Suzaku the south. The willows near the ponds and the catalpas next to the Museum of Modern Art represent respectively Seiryū and Byakko. Geomancy lost in importance during the Heian period as temple layout was adapted to the natural environment, disregarding feng shui. In addition to geomantic considerations, Buddhist temples, like any other religious structures, need to be organized in order to best serve their various purposes. The most important space in any Buddhist temple complex is the sacred space where images of Buddhas and bodhisattvas are kept, and where important rituals are performed. These areas are always separated from those accessible to the lay worshipers, though the distance between the two and the manner of their separation is quite varied. In many temples, there is little more than a wooden railing dividing the sacred space with that of the laypeople, but in many others there is a significant distance, perhaps a graveled courtyard, between the two. Another structure or space of great importance accommodates the physical day-to-day needs of the clergy. Spaces for eating, sleeping and studying are essential, particularly in those temples that serve as monasteries. According to a 13th-century text, "a garan is a temple with a kon-dō (main hall), a tō (pagoda), a kō-dō (lecture hall), a shōrō (belfry), a jiki-dō (refectory), a sōbō (monks' living quarters), and