Every creature in this world tries to arrange for a place in which to live comfortably, enjoying all the luxuries and happiness of this world getting maximum benefits of heavenly boons.

Every one is aspirant of having sound health, beautiful wife, healthy children, wealth, means of earning through business, profession or state service, high reputation in society and over all mental and spiritual peace. The sea animals and amphibians prepare a dwelling place on the sea shore, the birds build nests in the trees, the insects make a hive, and human beings are ambitious of making a house on the earth where all the liabilities towards this world and towards heaven can be fulfilled without any disturbance and trouble.

Therefore, aware of the need of a house and in order to avoid troubles, man wants to construct a house on such a ground where he can feel all sorts or happiness and can lead a peaceful life free of troubles and enemies, thereby deriving spiritual peace.

With this aim in his mind he sets out in search of the learned wise persons who can guide him in selection of a site (plot) of his choice, and also in construction of the house. He wants to know the proper auspicious time, and principles (laws) of construction of the house.

Also he has in mind the colony or city, neighbourhood, sources of water, natural environment, means of transport, etc. while selecting a plot for building a house, at the same time he thinks of his own interests and profits. The external features of the plot can be known with the help of persons living around or nearby the flat. But the quality and nature of the land can be judged only by Shastra. Therefore the selection of a site and the plan of the building is materialised only after consultation and seeking advice of expert astrologer and Vaastu Specialist.

There are saying like

Nadi Shotriyo Raja Devagyo Na Chikitasak Tatra Vaso Na Kartavaya.

A place where there is no river (Source of water - pond or well etc.), scholar, astrologer, ruler and medical expert, should not be selected for living thereon, it should be rejected.

Dushta Bharya Shath Mitra Bhratiyaschottar Dayak;
Sasarpe Ch Grahey Vaso Mirturev Na Sanshaya.

If there is house in which lives an unfaithful wife, a foolish friend , an outspoken servant and a snake, the owner of such a house may die any moment.

If such things are associated with the house constructed by some one, the life of the inmates becomes troublesome and unhappy, and there is always a fear of death.

Therefore everyone is curious to know as to what is Vaastu Shastra, and what principles and methods regarding construction of buildings have been given by the ancient saints and seers on the basis of their experience and commands in the divine scriptures. With the help of Vaastu Shastra and Shilpshastra, knowledge about the better and auspicious way of construction of a house, the positions and direction of gates, doors and rooms etc. in it, is gained so that a house may be built which will provide all round prosperity and happiness to the inmates. Thus Vaastu Shastra provides some principles and rules on the guidelines of which suitable and comfortable buildings for residence, temples, etc. are built and towns, colonies are planned.