Japanese high-quality Zen rock garden

Quick answer：

A Zen rock garden, also known as Karesansui, is a traditional Japanese landscape garden that emphasizes the natural simplicity of rocks, moss, and often gravel or sand arranged to represent a natural landscape. High-quality Zen rock gardens are meticulously designed and constructed, often with careful attention to balance and symbolism. They are a key element of Japanese Zen Buddhism and are meant to provide a space for contemplation and meditation.