I agree that symbols aren't inherently evil but they do hold meaning amd power when used for esoteric purposes. The cube represents the material plane of the 3rd dimension. The square has no flow and used for control, containment and structure. It's not a coincidence that our modern buildings are shaped in this way deviating of the beauty of the old world structures that served the spirit and energy flow.

The pilgrimage of Muslims circling mecca is a direct representation of the cube on Saturn.giving homage to the material world. As above so below manifest.