This post is not solely about confession, but I must bring it up in light of my unique experience as part of my witness. As to the purpose and necessity of confession, contested among Christians, I can only say that sin does not occur in a vacuum. It very rarely affects only ourselves. When we sin we sin against not just our God but against the whole body of Christ, causing discord and scandal and laying stumbling blocks in the path of those who do not know our hope. It's a good, humble thing to confess our sins to each other as St. James (Letter of St. James 5:13-16) pointed out, and sometimes it is very necessary for healing relationships and for gaining new strength in the fight. If you want to know why Catholics practice confession, especially in light of the Eucharist, go HERE. As for my own personal experiences, sometimes after confession I have felt so joyous that I have wanted to eat a fat slice of chocolate cake; sometimes I have felt immense relief, unburdened; one time I felt deep dissatisfaction - and it was my fault for avoiding confessing the thing that was most necessary; and then there was this time when, despite the pain of the experience, I realized that Jesus had my back.
This is a vulnerable post; even if you disagree with the need for the Sacrament of Confession as reconciliation after Baptism, please respect that.
I used to think I was one of the righteous ones, and it made me a little pouty.
(Whoa! How's that for a beginning? Be patient, and I will abase myself presently.)
Jesus said this in the parable about the lost sheep:
What man among you having a hundred sheep and losing one of them would not leave the ninety-nine in the desert and go after the lost one until he finds it? And when he does find it, he sets it on his shoulders with great joy and, upon his arrival home, he calls together his friends and neighbors and says to them, 'Rejoice with me, because I have found my lost sheep.' I tell you, in just the same way there will be more joy in heaven over one sinner who repents than over the ninety-nine righteous people who have no need of repentance. Luke 15:4-7 (NAB)
I used to think, What about me, Lord? I'm trying. I love you. I'm on the right path! Don't I bring you joy?