Mbh 12.214.2b

He that practises it duly attains to Brahma; he that practises it half and half, attains to the condition of the gods; while he that practises it indifferently, takes birth among Brahmanas and possessed of learning attains to eminence. Brahmacharya is exceedingly difficult to practise. Listen now to the means (by which one may practise it). That regenerate person who betakes himself to it should subdue the quality of Passion as soon as it begins to manifest itself or as soon as it begins to be powerful. One that has betaken oneself to that vow should not speak with women. He should never cast his eyes on an undressed woman. The sight of women, under even indifferent circumstances, fills all weak-minded men with Passion. If a person (while observing this vow) feels a desire for woman rising in his heart, he should (as an expiation) observe the vow called Krichcchra and also pass three days in water.[749] If desire is entertained in course of a dream, one should, diving in water, mentally repeat for three times the three Riks by Aghamarshana.[750] That wise man who has betaken himself to the practice of this vow should, with an extended and enlightened mind, burn the sins in his mind which are all due to the quality of Passion. As the duct that bears away the refuse of the body is very closely connected with the body, even so the embodied Soul is very closely connected with the body that confines it. The different kinds of juices, passing through the network of arteries, nourish men's wind and bile and phlegm, blood and skin and flesh, intestines and bones and marrow, and the whole body. Know that there are ten principal ducts. These assist the functions of the five senses. From those ten branch out thousands of other ducts that are minuter in form. Like rivers filling the ocean at the proper season, all these ducts, containing juices nourish the body. Leading to the heart there is a duct called Manovaha.