The first time I heard about “consecration to Our Lady” was during a retreat in Londrina. I thought it strange, almost excessive. In 2014, I made the consecration right there, in Brazil. Today, twelve years on, I can say it calmly: it was the most transformative spiritual decision I have ever made. This text is what I wish someone had explained to me that night.

What the Montfort Consecration is

It is the total handing over — body, soul, spiritual goods, merits, intercessions — to Jesus Christ through the hands of Mary. It is not a Marian devotion among others; it is the most complete way of living out our baptism, according to St. Louis Marie Grignion de Montfort, author of the True Devotion to Mary.

The handing over does not replace baptism — it ratifies it as a conscious donation. The baptised already belong to Christ. The consecration says: “I confirm this belonging, and I choose for it to be exercised through His Mother.”

Why through the hands of Mary

Because everything that passes through the hands of Mary reaches Christ purified. Our prayers without her are contaminated by vanity, distraction, presumption. She removes the poison and offers what remains — little, but whole. In Gratia Plena I devote a whole chapter to this logic of mediation that many Protestants read as an “obstacle” and which is, in reality, the shortest road to the heart of the Son.

The 33 days of preparation

Montfort proposes a 33-day cycle before the consecration, divided into four weeks:

  1. 12 preliminary days — detachment from the spirit of the world. Interior renunciation of the values that compete with Christ.
  2. Week 1 (days 13–19) — knowledge of oneself. General confession, deep examination of the roots of sin.
  3. Week 2 (days 20–26) — knowledge of Mary. Reading of the Marian Scriptures, of the life of the Virgin, of the Marian encyclicals.
  4. Week 3 (days 27–33) — knowledge of Jesus Christ. Contemplation of the Son whom Mary carried, raised, and offered.

Each day, the devotee prays specific prayers — Veni Creator, Litany of Our Lady, of the Sacred Heart, of the Holy Spirit — and reads a short text indicated by Montfort. It is not light. It is a month-long retreat hidden inside ordinary life.

The day of consecration

On the 34th day — chosen to coincide with a Marian feast (Immaculate Conception, Assumption, Nativity of the Virgin) — the devotee pronounces the formula of consecration in a simple celebration: it can be alone before a home altar, or, ideally, after Mass, with a priest witnessing.

The full formula is in the appendix of the True Devotion to Mary. The essential sentence is:

“I, N…, an unfaithful sinner, renew and ratify today in thy hands, O Mary, the vows of my baptism. I renounce forever Satan, his pomps and his works, and I give myself entirely to Jesus Christ, the Incarnate Wisdom, to carry my cross after Him all the days of my life, and to be more faithful to Him than I have been until now.”

The first fruits — what changed in me

Let me name four concrete changes I noticed in the twelve months that followed:

  • Patience with my wife. The consecration did not make me more virtuous by magic — it gave me a living reference for what patience means. When I lost control, I remembered that the Woman whose consecration I was renewing every day had watched her Son be crucified in silence.
  • Cleanness of thoughts. Impure, vain, resentful thoughts — they became sharper as thoughts foreign to my consecrated soul. They did not disappear. But they became visible, and what is visible can be fought.
  • Sacramental frequency. Monthly confession became fortnightly. Sunday Mass became Mass on Wednesday too. Not out of guilt — out of taste.
  • Courage to write. The book Gratia Plena itself was born of more than a decade of that silent handing over. I would not have had the courage to write about Mary without it.

How to begin — practical steps

  1. Get a copy of True Devotion to Mary. There are affordable editions in any Catholic bookshop. Read it slowly, over a month, before beginning the preparation.
  2. Choose a date: it can be 8 December (Immaculate Conception), 15 August (Assumption), 8 September (Nativity of the Virgin), 25 March (Annunciation), or any other Marian feast that matters to you.
  3. Count back 33 days and mark it on the calendar. On the indicated day, begin.
  4. If possible, do the 33 days with a spiritual director, or at least with a friend who has done it before — so you can confess difficulties without getting tangled up alone.

In Catholic in Belfast I write in more detail about each of the four weeks and the typical obstacles. For anyone who would like a reading companion during the 33 days, Gratia Plena has five short chapters built precisely for that rhythm — one per week.

Our Lady does not ask for the consecration in order to have what is already hers. She asks for it so that we can finally experience, consciously, what God willed in silence from the day of our baptism.