DEUT670 Do not eat of offerings that have become disqualified for the Altar. The Torah puts holy objects off limits to us and does not let us approach them. Similarly we are kept from entering places of high sanctity. These prohibitions helped to instill in us awe, respect and fear of all things holy. They teach us to value the holy. The idea is to awaken us from our slumber and soften our hearts, so that when we come to the Beis HaMikdash to ask for forgiveness for our sins, we appear before Hashem in the appropriate state of mind. Thereby, He will hearken to our requests and save us from all our woes.