Every human being has a psychological need for an identity, the same way any group of people needs to focus on a collectively shared identity. For the people, individuals or groups, an identity represents a concept-somewhat illusory although relatively persistent-of whom and of what one is, thus defining both the physical, psychological, social and cultural relations with other people and with the surrounding world. Life and the individual growth comprise the discovery of oneself with the continuing presence of change and personal evolution.