 These, writes Olivelle, are called "fallen people" and considered impure in the medieval Indian texts.The texts declare that these sinful, fallen people be ostracised.Olivelle adds that the overwhelming focus in matters relating to purity/impurity in the Dharma-sastra texts concerns "individuals irrespective of their "varna" affiliation" and all four "varnas" could attain purity or impurity by the content of their character, ethical intent, actions, innocence or ignorance (acts by children), stipulations, and ritualistic behaviours.