Metaphysically, the right eye (the eye of the will) represents what we want, and the left eye (the eye of the spirit) represents what we feel. These characteristics are reversed in the left-handers. What, then, is the truth? An exercise around metaphors, metonymy, anthropomorphism. In short, a sum of human relations that have been improved, extrapolated and adorned poetically and rhetorically, and that after prolonged use, the people consider firm, canonical, and binding.