The first great catch of fish after which some of the apostles left all and followed the Lord can be understood as a parable about our life. Things in the story have a mystical significance: launching out into the deep, letting down the nets, toiling overnight, doing things by the Word of the Lord, the boat starting to sink and the fish being salvaged by other boats, and Simon Peter seen the Lord and saying "depart from me if I am a sinful man".