What it does
Gives the angular size of each devta pad so that doors and objects can be located precisely on any plan.
Cautions
Explanation and notes
Even a square or rectangular building represents 360 degrees when you go around it. For easy reference each devta has a code: the East side from Ishaan (North-East) to Agni (South-East) is E1 to E8, the South side S1 to S8, the West side W1 to W8 and the North side N1 to N8. In this grid exact North falls on Soma (N5), exact East on Surya (E5), exact South on Yama (S5) and exact West on Varun (W5).
Directions fall at every 90 degrees, the corner directions (vidisha) at 45 degrees and the zones at every 22.5 degrees, giving 16 zones. Each corner has three parts with different properties, for example Nairitya splits into dakshini nairitya (SSW), nairitya (SW) and paschimi nairitya (WSW).
Find the centre, draw a reference line, set off the measured tilt to get exact North, then mark 22.5-degree zones starting 11.25 degrees on either side of North, using the Geo Vastu chakra or an ordinary protractor.
After zoning, mark the 32 outer padas of 11.25 degrees each: Soma (N5) is centred on exact North, extending 5.625 degrees on each side, and the remaining padas follow every 11.25 degrees.
For an irregular plot, measure the degree of one wall or axis, draw a line through the centre parallel to that wall, set off the measured tilt to get exact North, and then mark the zones as usual.
On large plots such as villas, kothis and farmhouses, the whole plot inside the boundary wall is zoned for the gate and outbuildings, while the house itself is zoned on its constructed area alone.
The outer pishach bhoomi of a plot is always left open on all sides, and on a North-facing plot the building is placed in the South and West part, leaving open space for energy to enter.
About two hours before sunrise the sun sends ultraviolet rays into the North-East, which bring the greatest alertness to the neurons and glial cells of the brain. This pure energy suits the pure soul, so the North-East is the zone of clarity of mind and the place for worship.
The energy that arrives about 48 minutes before sunrise in the East-North-East fills one with joy and playfulness, so this is the zone of recreation and fun; sitting there lifts a low mood.