 We exhibit these relations to ourselves and make inferences about them by means of simple diagrammatic mental images, images the unconscious employment of which routinely mediates the planning and execution of our voluntary bodily movements: these are sensorimotor image schemas. We use these schemas to monitor and manage our ongoing activities in the here and now, and to envisage possible future circumstances and possible future activities when we speculate or plan. We may also employ them in imagistic demonstrations of important general principles governing the geometric, kinematic, and dynamic relations they serve to depict, truths such as: