Space is not an external concept for the human brain. Space can be perceived and lived. The brain itself is the reflection of the body, which itself contains internal models of geometrical and dynamic properties. The body itself is spatial. It is at the same time a perceiving subject and a perceived object. The latter can make the difference between seeing and being seen. There is a regulation between the perceiving subject and the perceived object. We are the perceived subjects of perception. Experienced space is like a set of intentions, beliefs, emotions and actions that the perceiving subject generates. Subjective space is the subjective result of perception.