Vastu is an ancient science of balancing the five elements of the Universe and our Rishvers used. this science in those days to build the houses.  The idea behind jyotish shastra is the integration of functional architectural designs with nature and spiritual beliefs. This principle has been used in Indian construction since ancient times and continues to be used in modern architecture.  So in the modern World we use old and new technology to apply jyotish shastra for the welfare of human beings.