It is only when we begin to examine the way in which thinking creatures like ourselves find themselves in the world, and organise their activities in that world, that the limitations in viewing space only in the terms which it figures in physical theory or as it is ‘objectively’ conceived – particularly in the form in which it appears in much modern philosophical discussion – become clearly apparent. As Ernst Mach notes, in discussing the difference between ‘physiological’ and ‘geometric’ space, ‘Of cardinal and greatest importance to animals are the parts of their own body and their relations to one another … Geometric space embraces only the relations of physical bodies to one another, and leaves the animal body this connection altogether out of account.’