Baptism of desire
Baptism of desire (Latin: Baptismus flaminis) is a teaching of the Anglican Communion, Lutheran Church and Roman Catholic Church explaining that those who desire baptism, but are not baptized with water through the Christian Sacrament because of death, nevertheless receive the fruits of Baptism at the moment of death if their grace of conversion included "divine and catholic faith", an internal act of perfect charity, and perfect contrition by which their soul was cleansed of all sin. Hence, the Catechism of the Catholic Church observes, "For catechumens [those instructed in the Catholic faith who are preparing to be baptized into the Catholic Church] who die before their Baptism, their explicit desire to receive it, together with repentance for their sins, and charity, assures them the salvation that they were not able to receive through the sacrament" (CCC 1259). Some traditional Catholics, including Most Holy Family Monastery, oppose the teaching or consider it a heresy because it contradicts strict interpretations of the Catholic dogma referred to as "extra Ecclesiam nulla salus."
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Baptism of blood is a similar doctrine, for unbaptized martyrs.