As we are born we find ourselves in primordial loneliness which it is relieved with the meeting of the mother´s body. At the same time we also need someone to ensure the well-being and the survival of our own body, while there is time for us to grow and to mature. The first kind of communication that allows this meeting so fundamental for the couple mother-baby occurs in a visceral way through the experience body to body. This way, the body is not only our first form of expression, but also the way by which we get in touch with the outside world and our own inner world, full of needs and desires. The mother initially, has the duty of making the body stimulation tolerable for the baby to have a healthy development, without any interruption detrimental to their continued existence. Therefore, this study demonstrates the role of the body in the constitution of what we become, as far as the quantity and quality of exchanges and sensory experiences leave significant marks that will be taken lifelong. Experiences that occur between the mother´s body and the baby s body are mainly emphasized, since in the beginning, there is no separation between self and non-self, and the path to achieve the perception of this distinction is essential for us to become a person. The basic references that makes the theoretical basis of this study consistent are the Freud´s concept of body-ego; the importance Winnicott gives to the link mother-baby, as a granter of the mental health; the concept of self-skin developed by Anzieu; the importance of the gradual awareness of the physical separation from the mother and the effects mentioned by Tustin when this separation occurs in a traumatic way.