The Vaastu Shastra was evolved keeping in view the influence of the sun and the earth magnetic fields on the living beings on earth. That the sun is the life-giving and life-sustaining force is a fact well-known even to the most primitive of the people. The practice of Sun-worship by various civilizations founded at various times and strewn over the various parts of the earth corroborates it unambiguously. The advocate of Vaastu, therefore, worked out the principles of the discipline in such a way as to derive the rich benefits of the sun rays to the earth magnetic field on the householders, given the position and direction of the various components of the house.

The electrical energy, which pervades the living universe, is derived from the sun that the dead material of the Universe becomes endowed with sufficient energy to form living matter.

Ultra violet rays of the Sun are the only reliable source of Vitamin D. Vitamin D is absorbed by the blood directly when the bare skin is exposed to the sun rays.

The Sun rays, being a rich source of Vitamin-D are vital for the sustenance of life on earth; and the rays early in the morning from t he east emitting more light and less heat are the best. Hence the eastern direction assumes great significance. Precession of the equinoxes, Uttarayanam and Dakshinayanam, are known to have great scientific importance. It is in this context that north-east and south-east directions also attain importance along with eastern direction.

The following principles as enunciated by Vaastu are but a few examples.

• More windows in the east and north-east are good.
• Main doors in the east and north-east are to be provided.
• More open yard in the east and north-east is advisable.
• Providing east and north-east verandahs is good.
• Water tanks and wells have to be in east & north-east.
• Terrace on first floor is to be in north-east, east and north.
• Big boulders & big trees in north-east and east are not good.
• Solid and thicker walls in the west, south and south-west are better.
• Less window openings in south and west, are recommended.

As the early morning Ultra-violet sun rays are a rich source of Vitamin-D, doors and windows in the east allow them penetrate into the house, bestowing their benefits to the inmates. In the afternoon, on the other hand, the sun coursing to the west grows hot emitting the infrared rays that are detrimental to health. Therefore, less number of windows and thick walls in the rooms in west and south-west prevent radiation to a considerable extent. The verandahs in east or north or north-east will get good breeze and ultra-violet rays in the morning so as to give all the benefits to the inmates.

Presented below is an analysis of a few more of the Vaastu principles from the scientific stand point that helps reinforce the aforesaid facts.

Water in north-east
A well, placed in the north-east will have the benefit of the morning sun rays that have the power to purify the water by killing the disease-causing-bacteria and other germs therein

A Kitchen in south-east
a kitchen in South-east gets beneficial sun rays from east and good breeze from south.

Terrace in north-east
Similarly, the North or east part of the terrace on first floor, when kept open could be used for morning sun-bathing that does immense good to one health. North-east pergola is also good.

Boulders in north-east
Vaastu also enjoins that big boulders inside or outside the eastern of north-eastern boundary are not advisable. The reason is not far to seek. These boulders will obstruct the morning sun rays and the inmates of the house will be deprived of the rich morning sun rays.

Trees in north-east
Even the big trees with multiple branches and thick leaves are not advised to be grown on the east and north-east portion of the plot because they prevent the morning sun rays from entering the house Like the sun, the earth's magnetic fields also wield significant influence Like the sun, the earth magnetic fields also wield significant influence on the well-being of the inmates of the house. Contingent upon the place and position of the house, it is indeed baffling that the founders of the Vaastu were so well of the postulates help reap good number of benefits that the magnetic fields are capable of offering if the house is constructed and the inmates observe conforming to certain scientific laws. For example, Vaastu recommends the inmates of the house to sleep with their heads towards the south. The reason is that the human body acts as a magnet with the head as the north-pole. If the head is directed to the north, the earth s north-pole and the head acting as the north-pole of the body repel each other. As a consequence the blood- circulation would be affected, causing tensions and disturbed sleep.

These are but a few examples that testify the scientific rationale behind Vaastu shastra. However further research is required to strengthen the Vaastu principles on scientific lines and unravel many more secrets.

Pyramidal Structures with amazing results
The pyramids of Egypt, built in their mysterious past, continue to baffle the modern scientific minds. It is scientifically proved that the vegetables and other food stuffs could be preserved for a longer period under pyramidal structures. It is also seen that the razor blades retain their sharpness under pyramids for a considerable time.

We also see that a few of the churches and chapels look like modified pyramid. Some of the temples and mosques are also found to reflect pyramid shape. Many of the temple structures face east. Even the hutments and granaries in some villages are made in the shape resembling pyramids with east-face.

In the temples, the garbha griha, the sanctum sanctorum where the main deity is installed is constructed in the shape of pyramids. The shape has its own importance besides the fact that the prasadam, fruits and other oblation could be preserved for a longer period.

The authors of Pyramid power Maxtoth & Greg Nielsen say that Much that has been considered the superstition of past civilizations in now proving to be the core of an ancient science; many a modern discovery betrays its origin and basis in this secret science. Certainly, Pyramid power is at the fore front of these rediscoveries line.

If a pyramidal structure has such miraculous effect on the living organisms, no wonder if the houses built in line with Vaastu Shastra bestow their inmates health, wealth and prosperity.