KYOTO, JAPAN - NOVEMBER 17: The Zen garden in the Ryoanji Temple on November 17,2011 in Kyoto,Japan. One of the most famous stone gardens in front of the temple where zen monks used to medidate, today overcrowded by tourists. Fifteen rocks and white gravel to symbolize islands in the sea. Created around 1500 by a zen monk, Tokuho Zenketsu. (Photo by Ulf Andersen/Getty Images)

KYOTO, JAPAN - NOVEMBER 17:  The Zen garden in the Ryoanji Temple on November 17,2011 in Kyoto,Japan. One of the most famous stone gardens in front of the temple where zen monks used to medidate, today overcrowded by tourists. Fifteen rocks and white gravel to symbolize islands in the sea. Created around 1500 by a zen monk, Tokuho Zenketsu. (Photo by Ulf Andersen/Getty Images)