Twelve hours of the day are divided into five parts. Various activities to be performed in each of these parts are given ahead.

Let us understand the reason why not to urinate or defecate in the open, on tilled land, on an anthill and in a cowshed.

Let us understand the reasons why one should not urinate or defecate near water reservoirs, ancient temples, yadnyavedi or mound of holy ash, in water and in presence of fire, sun, moon, water, a Brahman and a cow.

Let us understand the science underlying the various acts performed during urinating and defecating like draping body and head with a cloth, hanging the janeu around the right ear, etc.