In ancient Japan, kitchens were designed with a built-in indoor zen rock garden. These kitchens were not only functional spaces for cooking and preparing meals but also served as a place for relaxation and meditation. The zen rock garden, known as a 'karesansui,' was an essential element of the kitchen design. It consisted of carefully arranged rocks, gravel, and sand, symbolizing the natural elements of mountains, rivers, and oceans. The kitchen's layout was designed to provide a serene and peaceful atmosphere, allowing the cook to find inner peace while performing daily tasks. The combination of the zen rock garden and the kitchen's minimalist design created a harmonious and balanced environment for both cooking and spiritual well-being.