Book excerpt: Sahasra Mahavaastu tries to evolve a system of Vaastushastra that is concurrent with tradition and does not contain any false, pseudo and use of silly practices that mislead its followers. Vaastu, Yoga, Jyotish (astrology), Sangeet (music) and Ayurveda (ancient Indian medicine) are five sub-branches of oriental science. In modern science the subject of dynamics is explained on the basis of three terms -- rhythm, synchronicity and frequency. This book discusses these as well as the divinesubject of Vaastushastra with the tools of planet-element-deity-direction-energy. The purpose of this book is to alert followers to protect themselves by avoiding false and pseudo practices that are prevalent in the present times. An attempt has been made to make this book a guide so that even a common man will be able to apply the basic remedial measures to protect the self. The author attempts to present Sahasra Mahavaastu as a revolutionary movement in the field of Vaastushastra, to propagate an ancient oriental thought in a modern language of the present world.