The dissipation speed of a disrupted closed surface equals the tangential velocity of momentum on that surface.

This paper presents a theoretical framework in which all matter and spatial structure are composed of dynamic closed surfaces with tangential velocity. When a closed surface breaks down—due to external energy input or interaction with other surfaces—it loses its centripetal cohesion and begins to radiate. The tangential velocity at the moment of breakdown is equal to the speed of dissipation, and this symmetry defines the boundary between space and matter. We explore how the integral of inner products between arbitrary vectors on a closed surface can be used as a measure of surface distortion and energy absorption. These disruptions may correspond to physical events such as collisions, resonant excitations, or chemical reactions. The model also postulates that matter is stabilized through reclosure of disrupted surfaces, offering a geometrically unified explanation for the formation of atoms, chemical bonding, and field structures. Furthermore, we propose that spatial fields (such as gravitational fields) are structured by the density gradient of nested closed surfaces, with their normal vector density obeying Gauss's law. This geometrical viewpoint provides a new interpretation of physical interactions and space-time structure based on closed surface dynamics.