Catechism in a Year
Saturday, October 06, 2018
300. What is interior penance?
It is the movement of a "contrite heart" (Psalm 51:19) drawn by divine grace to respond to the merciful love of God. This entails sorrow for and abhorrence of sins committed, a firm purpose not to sin again in the future and trust in the help of God. It is nourished by hope in divine mercy.
Further reading: CCC 1430-1433 , 1490
301. What forms does penance take in the Christian life?
Penance can be expressed in many and various ways but above all in fasting, prayer, and almsgiving. These and many other forms of penance can be practiced in the daily life of a Christian, particularly during the time of Lent and on the penitential day of Friday.
Further reading: CCC 1434-1439
These excerpts are from the Compendium of the CCC