Vastu
Vastu Shastra is based on the various energies prevalent in nature and their optimum utilization. One amongst these is the magnetic field (energy) of the Earth - having the geographic north also as the magnetic north pole and the geographic south as the magnetic south pole.
It is a known fact that hemoglobin of the blood is diamagnetic. Today magnetic therapy is a huge market world wide, in fact magnets have been found helpful in cases of depression and age related mental decline along with many other areas such as reducing inflammation and enhancing the flow of blood. Products like magnetic beds and rings are a big industry in the present day.
I have always been amazed to see how the wisdom and knowledge of the ancient sages was far more advanced than modern science wherein they tried to harness the magnetic field of the earth in a positive way in their every day living - so much so that they aligned the construction of their work and living areas in harmony to the natural magnetic field of the earth.
Another energy Vastu Vidya has given the utmost importance is the solar energy. It is no secret that life on earth is due to the sun’s energy. Today it is a proven fact that the early morning sun is a good source for vitamin D. The sages were wise, not only did they encourage homes facing east so that maximum morning sunlight lit up the home but they also supported strongly the ritual of ‘Surya Namaskar’ which meant offering water to the early morning sun, which I today believe was more of a health routine for increasing the levels of Vitamin D along with other sacred reasons mentioned in the Vedas.
Such is our ancient science of construction (Vastu Shastra) based on the absolutely necessary energies. Of course these are only a couple of things I am trying to explain here, for the benefit of the lay man, but the secrets are unending and it would take us thousands of years more to develop our knowledge enough to understand all the ‘whys’.
It is only by harmonizing our every day living with the universal energies/forces, that we not only take maximum benefits from them and maximize our chances of good health, but also bring harmony in our relationships by avoiding energies which would lead to power struggles within the home.
We also naturally feel more confident, happy and motivated and the auspiciousness of Brihaspati blesses us with all round success and prosperity.