It is said that Wright used nature as his principle, and had ideals in architecture that merged with nature. His philosophy is expressed beautifully in the design of YODOKO Guest House, as well as in its decoration. In order not to miss what is expressed in them while your attention is being drawn to the wonderfulness and sheer number of figurations, what motifs Wright used as a magician of formative art, and why they were used a number of times is explained here by revealing his tricks and ideas.

Carefully designed ornaments are decorated at numerous places in the YODOKO Guest House from exterior walls of the building to indoor pillars and interiors, and these ornaments are abstractions of trees and flowers in the neighborhood. In other words, natural figures are used as design motifs. One example is the decorative copper plates with leaf motif, which can be found here and there as transoms above doors, windows, and lintels. Not only focused on shapes, the plates were intentionally oxidized with verdigris to make their color close to natural green. Further, for places where natural lighting is necessary, openwork is used for the plates to create the effect of light streaming through the leaves of a tree.