I think this was well written so I post it again:
Originally Posted by Steve O’Brien [emphisis added]
[L]imbo is only a conjecture, not a dogma, but the exclusion of unbaptized infants from the beatific vision on account of original sin is a dogma, as the entire history of the dogmas of original sin and infant Baptism shows.
We must pray to the Blessed Mother, for she “has destroyed all heresies.” We should especially pray the Rosary for confused and scandalized Catholics who do not realize that a religion in which the Church can contradict her dogmas is not the Catholic religion.
“Limbo” is listed in the official analytical index of the Latin editio typica of the Catechism of the Catholic Church (Vatican City: Libreria Editrice Vaticana, 1997) on page 858:
“Limbus, 1261, cf. Baptismus, Exsequiae.”
It is simply false to say that limbo is absent from the Catechism of the Catholic Church. “Limbo” is listed in the official analytical index of the new catechism. The index mentions “limbo” in connection with section 1261.
In accordance with Catholic tradition, the “hope” mentioned in CCC 1261 should be understood as the hope for salvation from what Jesus calls the “fire” of hell (i.e., the “pain of sense”). It should not be interpreted as hope for the beatific vision.
What is a required belief for Catholics (i.e., a Catholic dogma) is that the souls of those dying in original sin only descend into hell for some kind of punishment.
A Catholic may believe (with St. Augustine) that this punishment is the pain of sense together with deprivation of the beatific vision, or he or she may believe (with St. Thomas Aquinas) that this punishment is merely deprivation of the beatific vision together with substitution of natural for supernatural happiness. St. Thomas’s state of natural happiness is called limbo.
I urge everyone to study Patrick J. Toner’s article on limbo in The Catholic Encyclopedia:
newadvent.org/cathen/09256a.htm