From this we can draw the philosophical conclusion that it is not matter but the spirit that we should consider the most important

"Let us consider the human body for a moment: it could be compared to a building, the framework being the skeletal system, which in nature corresponds to the mineral world and which, similarly, acts as material support. The muscles are attached to the bones, in the same way that vegetation is attached to the soil. The circulatory system, with its arteries and veins, corresponds to the rivers, waterways and lakes, because water is the earth's blood that feeds all the vegetation. The respiratory system corresponds to the air. And finally the nervous system corresponds to the sun, upon which the proper functioning of the entire organism is based. It is not the skeletal system that controls, but the nervous system, which is the most subtle and the most sophisticated. From this we can draw the philosophical conclusion that it is not matter but the spirit that we should consider the most important. "