The cow dung is a purifier.

Cow milk, butter, ghee and buttermilk are like nectar. The cow dung is not faeces, but a purifier. It helps produce the best quality grains, fruits, and vegetables when used as manure. Cow urine is a divine medicine and is a natural pesticide for crops. Pure ghee made with cow milk poured on burning cow cakes dung, produces a smoke that subsides the effect of poisonous gas.