In the world that we live in it is understood there is a relationship between events, whereby a cause can create an affect. Similarly, this principle extends to what one consumes in relation to their actions. The lawful (halal) and pure (tayyib) bringing forth the good and righteous deeds, whereas the doubtful and unlawful producing nothing but pollution and evil. \n\nThe speaker discusses this in light of the sixth principle of the path: voluntary abstinence from food.