III. The Final Purification, or Purgatory

From The Catechism of the Catholic Church

1032
This teaching is also based on the practice of prayer for the dead, already mentioned
in Sacred Scripture: “Therefore Judas Maccabeus] made atonement for the
dead, that they might be delivered from their sin.”⁶⁰⁷ From the
beginning the Church has honored the memory of the dead and offered prayers in
suffrage for them, above all the Eucharistic sacrifice, so that, thus purified,
they may attain the beatific vision of God.⁶⁰⁸ The Church also commends
almsgiving, indulgences, and works of penance undertaken on behalf of the dead:

PART ONE: THE PROFESSION OF FAITH

SECTION TWO I. THE CREEDS
- CHAPTER THREE I BELIEVE IN THE HOLY SPIRIT
  - Article 12 “I BELIEVE IN LIFE EVERLASTING”
    - III. The Final Purification, or Purgatory

From The Catechism of the Catholic Church – rosary.team