The brain gives us the ability to see, hear and feel the world around us; it gives meaning to all our actions and allows us to perform these very actions: purposefully move, do what we wish or consider necessary. But his abilities are much more extensive: the brain can memorize and store information related to our skills, knowledge and skills in different ways so that we act absolutely automatically; it also allows us to establish relationships with others and even become attached to them. In addition, thanks to the special development and structure of the brain, we have emotions: we experience anger, fear, happiness and disgust, respond to praise and affection; we are excited and alert or calm and relaxed, or we can just sleep. All these states of consciousness are part of how our brain works.