What does being Born Again mean per Catholic teaching? What does being Born Again mean per Catholic teaching?


  Jesus answered and said to him, “Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God.” (John 3:3 NKJV)
No 1213 Catechism of the Catholic Church under THE SACRAMENT OF BAPTISM summarises what baptism is:


  1213 Holy Baptism is the basis of the whole Christian life, the
  gateway to life in the Spirit (vitae spiritualis ianua) [4 Cf.
  Council Of Florence: DS 1314: vitae spiritualis ianua.], and the
  door which gives access to the other sacraments. Through Baptism we
  are freed from sin and reborn as sons of
  God;
  we become members of Christ, are incorporated into the Church and made
  sharers in her mission: "Baptism is the sacrament of regeneration
  through water in the word." [Roman Catechism II,2,5; Cf. Council
  Of Florence: DS 1314; CIC, cann. 204 § 1; 849; CCEO, can. 675 § 1.]


The answer to the question is in bold.