We are used to consider the imagination as an essential instrument in establishing our relation with the world. But in Antiquity, the term „imagination” had a rather negative meaning, being understood as a modality of getting false interpretations of the world, contrary to the conventional wisdom. The article follows the origins of this view in the greek philosophy, and emphasises some of the reasons it resonated well with the philosophy of the christian latin thinkers, like Augustine, thus being perpetuated until late Middle Ages and even in the modern era.