 In this sense, Reis shares essential affinities with Caeiro.Believing in the Greek gods, yet living in a Christian Europe, Reis feels that his spiritual life is limited and true happiness cannot be attained.This, added to his belief in Fate as a driving force for all that exists, as such disregarding freedom, leads to his epicureanist philosophy, which entails the avoidance of pain, defending that man should seek tranquility and calm above all else, avoiding emotional extremes.