It's the poet we love in Caeiro, not the philosopher. What we really get from these poems is a childlike sense of life, with all the direct materiality of the child's mind, and all the vital spirituality of hope and increase that exist in the body and soul of nescient childhood. Caeiro's work is a dawn that wakes us up and quickens us; a more that material, more than anti-spiritual dawn. It's an abstract effect, pure vacuum, nothingness.