What roles do stone lanterns and water basins play in Japanese gardens?

In Japanese gardens, stone lanterns and water basins serve as characteristic furnishings that help harmonize the natural beauty of the landscape with the architectural features of the home.1

• Stone Water Basins: These are used for both decorative and practical purposes. In the context of the tea ceremony, they are essential for performing ablutions before entering the cha-shitsu (teahouse). Beyond their utility, they are often strategically placed to influence the visitor's perspective; for instance, a basin might be positioned so that a guest must stoop to use it, creating a moment of reflection that connects the individual to the surrounding landscape and the wider universe.1
• Stone Lanterns: These are among the traditional elements used to furnish the garden. While they contribute to the overall aesthetic, their presence—along with other features like basins, pagodas, and arbours—is intended to create a cohesive environment that reflects the garden's design philosophy, emphasizing simplicity, restraint, and a natural, meditative atmosphere.12