The Science of the Shulba: A Study in Early Hindu Geometry c8.93

c8.93

"As much as a man with arms extended, with so much a bamboo-rod, (the Fire-altar) is meted out; so much strength is there in the man; verily with strength it is meted out;...He metes out the Fire-altar; seven (square) puruṣas he metes out; for by seven puruṣas he knows the universe and by seven puruṣas of the self he eats food. A measure of *aratni* is added to the two wings; the birds have strength by their wings."²