Stasis is a descriptor specific to motion. Stasis describes a lack of motion or a figure at rest. Stasis is typically used to describe a period without motion within a larger period containing motion and could be described as a “pause.” Stasis is the absence of motion when there is other motion occurring. While a painting could be described as being in stasis because there is no other motion inherent in the painting, stasis would not be applicable. (Technically, any non-motion-based media exists in a form of stasis.)
In this example, the square to the far left becomes the primary figure within the sequence because of stasis. In this example, all of the squares are moving except the square to the far left. The motion of the squares could be described as similar in direction and speed and more specifically, motion of position.