वास्तु मण्डन (मण्डन सूत्रधार - गृह, राजप्रासाद, दुर्ग एवं नगर-वास्तु सटीक)

Ch. I – Miśrakādhyāyaḥ 29
90. The house having proper directions bestows wealth and happi-
ness to the owner. The reverse direction causes loss of wealth
for a city, palace and temple.
91. In the confluence of rivers, holy places, forts, hermitages, one should
construct houses according to the type of the site, as no fault of
direction is counted therein.
Thus ends the rule of Orientation.
92. In ancient times, after killing the demon Andhaka, a drop of
sweat from Śiva's forehead fell down on the earth and out of
that an unbearable spirit was born.
93. Immediately, the Gods placed him on the earth keeping his
face down. His thigh, torso, legs were placed in the corners and
the head was placed in the North East.
94. Forty-five deities are presiding over the body of Vāstu. Among
them eight deities reside outside. Because of the God's settling
therein, it is known as Vāstu.
95. As he was made to face downwards, so thirteen offerings should
be made to him, and by this there will be peace; otherwise,
there will be loss and destruction.
96. During the initial start and further alterations to the palace,
house etc it is auspicious if he (Vāstudeva) is propitiated in all
Vāstukarma.