Persons unaccustomed to the performance of sacrifices or for whom sacrifices have not been laid down, and who are deprived of the company and the instructions of the pious, whether classed among the four principal castes or out of their limit, by uniting themselves with women of other castes, led not by considerations of virtue but by uncontrolled lust, cause numerous mixed castes to originate whose occupations and houses depend on the circumstances connected with the irregular unions from which they spring.