There are 15 stones in the rock garden of Ryōan-ji temple. Oddly, there is not a single place where all 15 stones can be seen together. Only up to 14 stones can be seen from any spot on the stage. An exquisite “space” that cannot be captured with the naked eye is designed there. The 15 stones can be divided into five groups, and a recent study shows that when vertical bisectors are drawn between these groups, a growth pattern of plants is revealed. I thought whether I could use the flow of wind to visualize the tension and looseness created by the perfectly designed space. By applying a fluid simulation into a scenery that overlooks the rock garden, I tried to expose the ecosystem of the wind that blows through it. At the same time, I applied a similar simulation to a parking lot in Tokyo which is thought to have absolutely no regard to design. By juxtaposing it with the simulation with Ryōan-ji temple, I decided to offer an opportunity to think about the similarities and differences between cases with and without the intervention of human design.