I heard about this awhile ago and filed it under dumb facebook shit, but now my grandmother wants us all to read this book that "says some real interesting stuff about what shapes say about the world". Is there anything I should know about this particular type of nonsense?
Drawing sacred geometry can be a meditative ritual. Most of the designs are built off of repetitive shapes/lines and so it can be pretty zen to draw that stuff. Once you draw it you start to understand that it's about creating complex images from simple rules. So it can be said to represent the way small things can cause larger changes. A simple Marxist reading might be to say that the "rules" for generating geometry represent the economic base while the full image shows the superstructure it generates, or something like that.