The sins of Christians are offenses against a state, the state of the redeemed. By committing sin we walk unworthily of our calling, we prove ourselves to be bad children, people who are unmindful of their election.
We sin against Christ, we hurt him in his brethren. Whether we be conscious or not of those implications, we cannot avoid having that kind of guilt on our souls every time we transgress. In his repentance the Christian has to think of many things which are exclusive to him. He has to remember his baptismal robe, he has to bear in mind his adoption as a child of God, the seal of the Spirit, the sweetness of the Bread of Life, the Blood of the Lamb, all of which mysteries he has more or less trampled under foot every time he has sinned grievously. He has saddened his brethren, he has brought shame on the Church, he has made the infidel blaspheme the name of the Lord, he has made the work of the Holy Spirit more difficult, he has been a dead weight on fervent men and women to whom nothing is dearer than the glory of Christ.
All these results and many more are infallibly associated with our sins. Therefore when we repent hosts of invisible powers are set in motion, all demanding to be satisfied and to be vindicated. Now it is the special merit of the Christianas poenitens that he is determined to make full amends for all past outrages, to give satisfaction to the whole hierarchy of the supernatural order, and to repair the gap he has made in the life of Christ's mystical Body. His repentance is more than a sorrow; it is a hunger and thirst after justice; it is an effort to fill up those things that are wanting to the Body of Christ through his guilty acts.
Dom Anscar Vonier, o.s.b.