followed Chinese practice. Houses and gardens were aligned on a north-south axis, with the residence to the north and the ceremonial buildings and main garden to the south, there were two long wings to the south, like the arms of an armchair, with the garden between them. The gardens featured one or more lakes connected by bridges and winding streams. The south garden of the imperial residences had a uniquely Japanese feature: a large empty area of white sand or gravel. The Emperor was the chief priest of Japan, and the white sand represented purity, and was a place where the gods could be invited to visit. The area was used for religious ceremonies and dances for the welcoming of the gods. The layout of the garden itself was strictly determined according to the principles of traditional Chinese geomancy, or Feng Shui. The first known book on the art of the Japanese garden, the (Records of Garden Keeping), written in the 11th century, said: The Imperial gardens of the Heian period were water gardens, where visitors promenaded in elegant lacquered boats, listening to music, viewing the distant mountains, singing, reading poetry, painting, and admiring the scenery. The social life in the gardens was memorably described in the classic Japanese novel The Tale of Genji, written in about 1005 by Murasaki Shikibu, a lady-in-waiting to the Empress. The traces of one such artificial lake, Osawa no ike, near the Daikaku-ji temple in Kyoto, still can be seen. It was built by the Emperor Saga, who ruled from 809 to 823, and was said to be inspired by Dongting Lake in China. A scaled-down replica of the Kyoto Imperial Palace of 794, the Heian-jingū, was built in Kyoto in 1895 to celebrate the 1100th birthday of the city. The south garden is famous for its cherry blossom in spring, and for azaleas in the early summer. The west garden is known for its irises in June, and the large east garden lake recalls the leisurely boating parties of the 8th century. Near the end of the Heian period, a new garden architecture style appeared, created by the followers of Pure Land Buddhism. These were called "Paradise Gardens", built to represent the legendary Paradise of the West, where the Amida Buddha ruled. These were built by noblemen who wanted to assert their power and independence from the Imperial household, which was growing weaker.