Self-formation is a process that an object or phenomenon is transformed by itself to adapt its shape or character from the external forces. The transition when the nature changes or is changed by the natural impacts such as weathering, erosion, sedimentation, earthquake or volcano effect, can be also called as a self-formation. Not only the natural phenomenon, but also arts and architecture can be also self-formed, which means that the form of arts and architecture is produced unintentionally from the natural phenomenon including gravity or user’s change, although the designer did not purpose the outcome. Interestingly, the external factors and the system how Nature or man-made structure has infl uenced on is very similar and its impact brings similar results on both, even though the intent, scale, life and material of form from Nature and artificial constructions are totally different each other. Through the Branner Research Fellowship, I explore the all the results of self-formation in both Nature, arts and architecture, and understand its process, reasons, controlling factors and external forces.