Our bodies are constantly interacting with their environment. This project explores movement through materials. In what ways can objects reveal our interactions by extending our gestures and triggering emotions? The seat's aesthetic and functionality embody curves that illustrate the chronobiological cycle. The chair presents three challenges: a fluid structure that can be easily assembled and dismantled; the use of natural materials that can bend in both directions; an ergonomic design centred on gravity.A formal and sensory research, where design becomes a medium for listening to the living.