Astrology is a complex discipline, and complete. It describes how the energy qualities of the planets and constellations are impressed with our character, in the events of our lives and even in large-scale events such as those affecting peoples, nations and planetary events. The own archetypes that it uses are typical of this discipline, though they may be compared with several other archetypes, in order to have a comparison between different disciplines and to be able to understand better the situation using both. The astrological discipline already had a quite ancient and well developed technique for medical diagnosis and could also indicate karmic predispositions at birth, weaknesses or critical periods of this or that organ or vital apparatus and advise how to behave to avoid or keep "under surveillance" the problem. In this conference we will come in contact with the planetary archetypes and their symbolic and energetic meaning.