Men Tou Kusansui

Quick answer：

Men Tou Kusansui is a traditional Japanese rock garden, known as a 'kare-sansui' or 'dry landscape garden'. It is a Japanese garden composed of carefully raked white sand or pebbles, representing water and sometimes islands. These gardens are typically found in Zen Buddhist temples and are meant to evoke a feeling of tranquility and natural beauty. The term 'Men Tou' specifically refers to the entrance or gate in such gardens.