  Whereas geometrical space is unbounded, infinite, and homogeneous (at least in its Euclidean form), physiological space is highly bounded, finite, and non-uniform. Geometrical space is detached from our emotional psyche, but physiological space is intertwined with basic emotions: a tiger nearby in physiological space brings about different emotions than a tiger far away in physiological space. Similarly, upness and downness, rightness and leftness are not just abstract directions but have physiological, and thus psychological meaning. When objects in physiological space are moved, their (apparent)size changes (similarly, when we move, the size of objects in physiological space also changes).  And, importantly, physiological space does not, at least in its origins, have a metric. The origins of physiological space are in unconscious biological need, whereas the origins of geometrical space are in physiological space and intellectual development.