In the First Reading today, we have a very strange incident. The people grumbled against God and Moses (what’s new?) and were bitten by serpents. God had must Moses make a bronze serpent and raise it up so that whoever looked upon it would be cured. This became a type of Christ on the cross. It is through our gaze (and belief in Him) that we are saved.
This reminds us that, at the end of the day, the most significant symbol of Christianity is the cross. It is, as if, Jesus’ life, teachings, and miracles all imploded in the cross. We have to maintain our gaze on the cross, always.