The structure of the cabin is based on cube, combined with three different sizes of geometry-shaped sound tube to space combination. Trying to find the most comfortable space atmosphere for people to talk with the forest. The three themes of the cabin are sun, voice and reflection which to get different meditation experiences. Although in the small spaces which for living and meditation space, it can be used three kinds of spaces to concentrate and enlarge the gradual changes naturally to feel the spacious atmosphere. Under the gaze of nature, it gives us a high quality of wooden cabin.