In my Artwork, the four cycles of Full and Empty, as well as Nature and Civilization are presented by a medium called pinion(spring). In Korean’s Chinese literature, pinion is written as embryo （unborn child）. Being pregnant means giving birth to a new life. Similarly, watch can only get started with a pinion. During summer time, peach blooms, spreading the seeds everywhere and leaving the unneeded parts to become dry. At this moment, Wind is responsible for ‘giving birth’ to the nature. If time is the unit of all beings in the world, then pinion will be the ‘heart’ of all beings as it keeps time moving.