The development of the familiar institution allowed that other segments and ramifications of the social and private life blossomed. The problemascotidianos had passed to be analyzed in the private life, of more rational and less instinctive form of what some millenia behind. If it became necessary the existence of an individual endowed with a superior wisdom, that could find answers and solutions for the Metaphysical questions that could not if understood. It appeared then the Xamanismo and witchcraft of adivinhao. Valley to detach, in this point the basic difference in the questions of interpretation of the dreams when the sonhador relates it with its proper desires or problemascotidianos. When the dreams in the private thought are associates ace questions of the universe that the fence, has a bigger difficulty of if reaching a conception of truth, a time that the method of the artistic representation of the first item of this work if they become absoletetos in utility (but not in use) Had an object, but not one technique of adjusted interpretation, it interprets therefore it inevitably would manipulate the form result to reach the convenience. It was felt necessity of an authority in the subject. Xams and wizards who had appeared in the primitive societies, of certain form would substitute the old leadership of the dominant male, functioning as a priest, mediator between the material and incorporeal questions. Its religious authority in the half primitive was undisputed, and this present work, it gives credit that first the great ones passed in the world of science must be attributed to the work of the wizards who had to its I officiate had started to use of ' ' pesquisa' ' , looking to the best grass healers and testing its results, similar to find the one that better agreed to it. In the question of the dreams, when the xamanista institution was introduced in the primitive society, the artistic surreal, (that it lost its value therefore such artistic movements would not last until the beginning of the neolithic phase.), if it became exceeded method of interpretation (had to the factor convenience, already cited) and the question passed the ability of these wizards.