Also known assharir vastubody
A Vastu practitioner must first keep the Vastu of his own body right. Eating a creature after causing it suffering spoils the body's Vastu, and then he cannot correct anyone else's Vastu, so every student vows to give up non-vegetarian food for life.
A practitioner should work with justice and ethics and never like a butcher: when a client is buried in debt, has mortgaged belongings or cannot pay his own bills, no fee should be taken from him.
Both geopathic and cosmic energy exist in the form of the five elements. The universe, the body, the nine planets and every material, food, metal and artifact represent one element or another, so a building is balanced by balancing its elements.
The five chakras from the throat downwards hold the five elements in the same order as creation: Vishuddhi holds space, Anahata air, Manipur fire, Swadhishthan water and Muladhara earth.
The human body, imagined facing East, is built like the Vastu Purush Mandal, and the position of each body function shows where the matching part of a house belongs.
Whole house: doors in NE, E and N; slope to E and N; underground water tank in NE; kitchen in SE; toilet in WNW
The left side is the chandra nadi, used for stable and timely work, and the left hand represents the North, where Mercury, the planet of clocks, lives; so the watch is worn on the left hand.
Left wrist
When a chamber or tank goes deep enough, below navel level, it does not attract dosh, because in the human body, which follows vastu, the dirty matter also lies below the navel. A dirty chamber near the surface is not acceptable.
It shows a defect or imbalance at that pad. When an offering reaches a defective place the defect tries to come out, as when granite tiles at one devta pad cracked during a group havan, and the body reacts. The uneasiness is a signal: the pad must be purified and activated with the method being taught (havan samagri, bhog samagri, mantra or the samagri to hang), so wait for the full method before trying again.
The navel (nabhi) is the exact Brahmasthan of the body.
The left side is the chandra nadi and the right side the surya nadi. The surya nadi is for fierce or aggressive work, while timely and stable work belongs to the chandra nadi: shilanyas and griha pravesh are done in the chandra nadi at a fixed muhurta, so the watch, which keeps you on time, goes on the left. Also, in the vastu of the human body the left hand represents the North, where Mercury lives and where the clock is hung.