Orientation of a building is important to save energy and to build a better house design, which would be comfortable for living simultaneously gives positive energy, good health, prosperity and wealth to the occupants. A living place and its direction have a correlation between the rotational scenarios of the planets with respect of north.
There are total of eight directions, the directions North, South, East, and West are called cardinal directions and the point where any of the two directions meet is called intercardinal or ordinal point like NE, SE, SW, NW. These directions are given a lot of importance in Vastu Shastra as they combine the benefits of the two directions in totality.
Our Shastra says, if we worship, idolize and honor the Lords of these eight directions, they will bestow their blessings and benefits on us. We will now examine their importance according to scriptures.
East: This direction is governed by lord Indra and he is known to be the king of Gods. He bestows wealth and pleasures of life.
South East: This direction is governed by lord of fire- Agni. He gives us good personality and all good things of life. Fire is a source of health as it is related to fire, cooking and food.
South: This direction is of Yama, the god of death. He is manifestation of dharma, and eradicates evil forces and bestows good things. It is a source of wealth, crops and pleasure.
Southwest: This direction is directed by Niruti, the god who protects us from evil foes. It is a source of character, demeanor, case of longevity and death.
West: This direction is directed by Lord Varun, the lord of rains. He bestows his blessings in the form of natural water-rain, brings prosperity and pleasures of life.
Northwest: This place is directed by lord Vayu and he brings on us good health, strength and long life. It is a source of change in course of business, friendship and enmity.
North: This direction is governed by Kuber, the god of wealth.
Northeast: This place is a supervised by lord Eeshaan, and is a source of wealth, health and success. He brings us wisdom, knowledge and relieves us from all miseries and mishaps.