This is a traditional Hindu architectural system from India which literally means “science of architecture”. It comes from ancient texts that describe architectural principles of design, spatial geometry, space arrangement and connectivity, formulas, dimensions, measurements, proportion, layout, orientation, and ground preparation so that buildings are more aligned to Cosmic Life. This science ensures that individuals will be in harmony with the cosmos and natural law and thereby enjoy more peace, prosperity, and good health and relationships in their daily lives. Here are a few sources to further explain this design system in more detail.