In Vastu Shastra, the north-east corner — Ishanya — is considered the most auspicious part of a site. It is associated with Ishana, a form of Shiva, and with the element of water. Traditional guidance keeps it clean, open and low, and places the prayer room, meditation space or water source here.
The traditional view
In the Vastu Purusha Mandala, the head of the Vastu Purusha lies in the north-east. Keeping this zone light and unburdened is said to bring clarity, health and spiritual progress to the household. Heavy construction, toilets and clutter are traditionally avoided here.
The view from the sun path
For most of India, the sun rises in the east — north of east in summer, south of east in winter. The north-east corner therefore receives early-morning sunlight, when the light is gentle and the heat low. By the afternoon, the sun has moved to the south and west, so the north-east is the coolest corner of the house.
Opening up the north-east therefore admits soft morning light and air without heavy heat gain — a quality building scientists also look for. Morning daylight also supports the body's circadian rhythm.
Keeping both views honest
The convergence is real, but it has limits. Building science does not say that a cluttered north-east causes misfortune; that is a matter of belief. Likewise, Vastu was developed for Indian latitudes — in the southern hemisphere the sun path is reversed, and many practitioners debate how the rules translate.
Explore it yourself with our interactive sun-path tool.