Sin Wikipedia
With respect to the traditional concept of St. Augustine of Hippo sin is “a keyword, deed, or desire in opposition to the fresh endless legislation out of Goodness”. If you are standard “sin” means transgressions against common moral laws, four serves — hurting a great Buddha, killing an Arhat, carrying out schism from the Sangha, matricide, and patricide — are thought very significant that they provide immediate karmic consequences.
