Karesansui sand garden sand patterns

Quick answer：

Karesansui, also known as Zen rock garden, is a Japanese garden that uses rocks, sand, and moss to represent landscapes. The sand patterns in karesansui gardens are meticulously raked to mimic natural features such as mountains, rivers, and waves. This art form is a significant part of Japanese garden design, symbolizing the beauty of nature and the simplicity of Zen Buddhism.