Sutak or Puerperium or rules of impurity accruing from birth and death is fourfold. The rules of impurity are applicable to all the four castes Main article: Sutak Educated Hindus of these days say that Sutak-Patak really is on account of health consideration but they are not correct in this respect. In the acceptance of these superstitions there is an element of Dharma and ignorance because if a person is not touched by a puerperal woman and has not touched a dead or dying person (how) he can become impure, just by hearing of the new situation.