Memory is the ability to recreate in the mind, the experience of life, so how Cicero argued, "is a treasury and guardian of all things", that is the reality. Memory is a "complex cognitive function," which only artificially, may be separated from other cognitive and affective. In other words, memory is an adaptive mechanism essential for survival because it depends from learning and memory strategies and certain types of behavior. The experience and memory, then, become functions that allow you to create a "story", the formation of the feeling of being alive, to create a sense of self founded on a structure in its unrepeatable uniqueness, but also integrated with the person objects and the environment.