It might seem paradoxical that such a materialist writer as Saramago takes advantage of the Platonic image of the cave. However, the goal of Saramago's novel is precisely to illustrate the spiritual and mental darkness of our contemporary world. In spite, then, of Plato's ideocentric philosophy, which is certainly not followed by the Portuguese writer, his image can be reasonably used in order to defend a non metaphysical way of life, and this is not an obstacle to pay a sincere homage to the famous Athenian philosopher's images.