Man cannot transform himself into a holy being. As my Irish grandmother would say,“You can’t make a silk purse out of a sow’s ear.”In other words, only Christ can transform us into His image and draw us into the heart of His Father.
Atendance at Mass, regular confession, spiritual exercises, fasting, and prayer are wonderful vehicles of grace but if we think pious activities will sanctify us, we will only appear to be holy on the outside like the Pharisees:
Woe to you, scribes and Pharisees, you hypocrites. You are like whitewashed tombs, which appear beautiful on the outside, but inside are full of dead men’s bones and every kind of filth.(Matthew 23:27)