Without taking the time to reflect on our desires and thoughts, we can deceive ourselves into thinking we are exempt from repentance—or even become blind and numb to struggles we were unaware of. Looking at ourselves objectively is the key. In one scene from the movie Shrek, Lord Farquaad uses a magic mirror that is supposed to reveal the truth to him. However, Farquaad and his pride end up forcing the mirror to lie and tell him what he wants to hear and see about himself. In a similar way, we can suffer from self-deception when we chose to skip over a right examination of our lives.
Source: https://www.imdb.com/title/tt0126029/