VII. The Acts of the Penitent

From The Catechism of the Catholic Church

1459
Many sins wrong our neighbor. One must do what is possible in order to repair
the harm (e.g., return stolen goods, restore the reputation of someone
slandered, pay compensation for injuries). Simple justice requires as much. But
sin also injures and weakens the sinner himself, as well as his relationships
with God and neighbor. Absolution takes away sin, but it does not remedy all
the disorders sin has caused.⁶² Raised up from sin, the sinner must
still recover his full spiritual health by doing something more to make amends
for the sin: he must “make satisfaction for” or “expiate”
his sins. This satisfaction is also called “penance.”

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION TWO THE SEVEN SACRAMENTS OF THE CHURCH
- CHAPTER TWO THE SACRAMENTS OF HEALING
  - Article 4 THE SACRAMENT OF PENANCE AND RECONCILIATION
    - VII. The Acts of the Penitent

From The Catechism of the Catholic Church – rosary.team