What an interesting concept? Sacred geometry, two things that one would believe cannot be connected to each other but actually are. In fact, most of us think of geometry as a dry and dull subject, which has come into existence only to make our lives tougher. But the fact is that geometry has many mystic and even nature related connotations that one cannot ignore. While one may not be wrong in quoting excellent examples of cubism art works as having their roots in geometry but not really aligned to sacred notions, which is true but there is a concept called sacred geometry. You have to realize that not every art that is related to geometry has sacred roots but if one wants, one can find a connection. For instance look at different types of perspective in art with examples, while this per se is not sacred, it will have a place in spirituality and nature.