This universe is a battleground where forces of order and disorder struggle. We can eat or be eaten, but even if we survive the struggle between predator and prey, we have to face floods and hurricanes, asteroids and volcanoes. True peace is possible even on this battleground because of Christ's victory on the cross. This true peace can be understood when given its proper name: the peace of Christ. We can understand better when we pray to God, when we read the Bible, and when we worship him. We should pray, asking for God's help and praying the psalms.We should sit quietly, letting ourselves become more aware of God's presence and learning to pray along with God, to listen along with God, and to think along with God. We should read the Bible, the word of God as recorded by his prophets and evangelists. We should worship God at least once a week, preferably participating in the eucharistic rite, eating the body of Christ and drinking his blood as He commanded for the sake of our salvation (John 6:53). In various ways, we should allow God to fill us up with his Son, so that we might become Christlike persons. Only in that Christlike state can we obtain true peace.
