Download and read the PDF article titled: Deepening in the Graces Received – OCIA Catechesis in the Period of Post-Baptismal Catechesis or Mystagogy to learn about the final period of post-baptismal catechesis, which is called “Mystagogy.”
A quote from the above article:
“Mystagogy is properly situated after the reception of the sacraments because only then do our fledgling Catholics, the neophytes, have the grace to understand and appreciate the sacred mysteries of the Church in a more profound manner.”