Damasio : Consciousness, much like our feelings, is based on a representation of the body and how it changes when reacting to certain stimuli. Self-image would be unthinkable without this representation. I think humans have developed a self-image mainly to establish a homeostatic organism. The brain constantly needs up-to-date information on the body's state to regulate all the processes that keep it alive. This is the only way an organism can survive in an ever changing environment. Emotions alone—without conscious feelings—would not be enough. Adults would be as helpless as babies if they suddenly lost their self-image.