Not noticing or seeing something in us is a result of our habitual paying attention only to things outside of us. We are not introspective or reflective of our selves. Jesus points out to the disciples a kind of spiritual blindness - seeing flaws in things and finding faults in others but not knowing oneself interiorly. Without intimate self-knowledge we are not in a position to help our brothers and sisters to put things right. Jesus thus reprimands the disciples: Take the plank out of your own eye first, and then you will see clearly enough to take out the splinter that is in your brother's eye.

It is not easy to remove things that we do not see. So what shall we do?

Perhaps we could learn to see perfection in all creation, because God's glory is manifested in everything He creates. If we find ourselves struggling to see goodness, probably we need to start to learn to love, and to love deeply. Nobody appears to us to be perfect until we fall in love with them.