In today's Gospel reading from Mark 7, Jesus said to his disciples that what comes out from within a man, from his heart, is what defiles him. As examples, he mentioned evil thoughts, unchastity, theft, murder, adultery, greed, malice, deceit, licentiousness, envy, Blasphemy, arrogance, and folly. The fact is that God can thoroughly cleanse our heart and keep us holy. That's why seeking union with God is not just a choice, but a must for us. It's getting defiled without God or staying clean with God.