Words for the journey.
Plain-language definitions of the Catholic terms you'll meet along the way — written for the newly initiated and the returning. No one should feel lost in the middle of a sentence.
catechumen
An unbaptized person preparing for the Sacraments of Initiation.
A catechumen is an unbaptized person formally preparing to receive Baptism, Confirmation, and the Eucharist through the Order of Christian Initiation of Adults (OCIA). Catechumens are joined to the Church and supported by the community during their formation.
CCC §1248
mystagogy
The period of deepening after initiation.
Mystagogy is the final stage of initiation — a season (often the weeks after Easter) in which the newly initiated reflect on the mysteries they have received and are helped to live them in ordinary life. It is not an ending; it is the beginning of lifelong formation.
CCC §1075
OCIA
Order of Christian Initiation of Adults — the Church's process for welcoming new Catholics.
Formerly called RCIA, OCIA is the restored process by which adults are prepared for full communion with the Catholic Church. It includes the periods of inquiry, catechumenate, purification, and mystagogy.
CCC §1247–1249
sacrament
A visible sign instituted by Christ that gives grace.
A sacrament is an efficacious sign of grace, instituted by Christ and entrusted to the Church, by which divine life is given to us. The seven sacraments are Baptism, Confirmation, the Eucharist, Reconciliation, Anointing of the Sick, Holy Orders, and Matrimony.
CCC §1131
Paschal Mystery
Christ's Passion, death, Resurrection, and Ascension.
The Paschal Mystery is the saving work of Christ — His suffering, death, Resurrection, and Ascension — by which He conquers sin and death. Every sacrament and the entire liturgical life of the Church flows from this mystery.
CCC §1067
grace
God's free, undeserved gift of His own life in us.
Grace is the free and undeserved gift of God's own life in us. It heals, elevates, and transforms us. Grace comes first — God acts before we do — and enables our free response of faith and love.
CCC §1996
faith
The trust of the whole person responding to God.
Faith is the theological virtue by which we believe in God and all that He has revealed. It is a response of the whole person — mind, will, and heart — not merely a feeling or an opinion. Faith does not require certainty of feeling; it requires trust in the One who is trustworthy.
CCC §1814
incarnation
The eternal Son of God becoming man.
The Incarnation is the mystery that the Son of God, the second Person of the Trinity, became flesh — truly God and truly man — in the person of Jesus Christ. The distance between God and man is not bridged by our climbing up; it is bridged by God coming down.
CCC §461
Trinity
One God in three Persons: Father, Son, and Holy Spirit.
The Trinity is the central mystery of Christian faith and life — one God in three divine Persons: the Father, the Son, and the Holy Spirit, distinct from one another yet one in substance, equal in glory and majesty.
CCC §234
creed
A shared summary of what the Church believes.
A creed is a brief summary of the faith professed by the Church. The Nicene Creed, prayed at Mass, expresses the core of Christian belief in the Father, the Son, the Spirit, the Church, Baptism, and the hope of eternal life. To say 'I believe' is to enter what the whole Church believes.
CCC §166
Eucharist
The Body and Blood of Christ — the source and summit of the Church's life.
The Eucharist is the sacrament in which bread and wine become the Body and Blood of Christ. It is the source and summit of the Christian life, the memorial of Christ's Passover, and the sacrifice of the Church.
CCC §1324
reconciliation
The sacrament of God's mercy and forgiveness.
The Sacrament of Reconciliation (also called Confession or Penance) is the sacrament by which sins committed after Baptism are forgiven. Christ, through the priest, speaks mercy; the penitent receives it and is reconciled to God and the Church.
CCC §1422
liturgy
The Church's public worship of God.
The liturgy is the public prayer of the Church — the celebration of the Paschal Mystery in which Christ Himself acts through Word and Sacrament. The Mass is the Church's highest liturgical act.
CCC §1069
discernment
Listening for how God is calling you to respond.
Discernment is the prayerful process of noticing how God is moving and deciding how to respond. It is not anxious calculation; it is honest attention — naming where you are, where God is, and the next real step.
vocation
God's call to a particular way of loving and serving.
Vocation is God's personal call to each person — a particular way of living one's baptismal call to holiness. The universal vocation is love; one's state of life (married, ordained, consecrated, or single) is the setting in which that love is lived.
CCC §1878
formation
Growing into the likeness of Christ over time.
Formation is the lifelong process of being conformed to Christ — not merely learning about the faith, but being shaped by it in mind, heart, and habits. It continues well beyond initiation into the whole of Christian life.
holiness
The fullness of life in union with God.
Holiness is not a heroic achievement; it is the fullness of life in union with God, the perfection of charity. It is the destination of every Christian journey and the promise of baptismal grace — 'Be holy, for I am holy.'
CCC §2012
mystagogy (continued)
Post-initiation accompaniment into ordinary Catholic life.
Beyond the liturgical season, mystagogy names the whole task of helping the newly initiated receive the mysteries and live them. Holy Journey accompanies this continuing formation after OCIA.
parish
A local community of the Church gathered around Word and Sacrament.
A parish is a stable community of the faithful entrusted to a pastor, gathered around the Eucharist and the other sacraments. It is the ordinary place where Catholic life is lived — not a building, but a family of brothers and sisters.
CCC §2179
accompaniment
Walking with another in their faith journey.
Accompaniment is the pastoral practice of walking with another person as they encounter Christ and grow in faith — not directing from above, but sharing the road, listening, and pointing toward the Lord.