The Hands and Feet.
The hands and feet are also means by which Bhûts enter the body. Hence much of the ablution at prayers and meals; the hand-clapping which accompanies so many religious and mystical rites; the passing of the hand over the head; the laying of the hands on the eyes to restore sight, of which we have many examples in the Indian folk-tales; the hand-pledging at marriages; the drinking of the Charan-amrita, or water, in which the feet of a holy man have been washed; the ceremonial washing of the feet of the bridegroom at a wedding by the father of the bride. The stock case of the danger of the not washing the feet at night is that of Adilî, whose impurity allowed Indra to form the Maruts out of her embryo. A man with flat feet is considered most unlucky, as in North England, where if you meet a flat-soled man on Monday you are advised to go home, eat and drink, or evil will befall you.[23] The chief basis of feet-washing is the idea that a person coming from abroad and not immediately carrying out the required ablution runs the risk of bringing some foreign, and presumably dangerous, spirit with him.