The St. Benedict Medal: What Every Letter Means

The St. Benedict medal is one of the oldest and most widely used sacramentals in the Catholic Church. On one side is St. Benedict himself, holding a cross and the Rule he wrote. On the other is a cross surrounded by letters, and those letters are why people search for it.

They are not a code, a cipher, or a secret. They are initials, in the ordinary medieval way of abbreviating a sentence everyone already knew. Decoded, they are two Latin prayers and two labels.

On the arms of the cross: CSSML NDSMD
Crux Sacra Sit Mihi Lux, Non Draco Sit Mihi Dux.
May the holy cross be my light, may the dragon never be my guide.

Around the edge: VRSNSMV SMQLIVB
Vade Retro Satana, Nunquam Suade Mihi Vana; Sunt Mala Quae Libas, Ipse Venena Bibas.
Step back Satan, never tempt me with your vanities; what you offer me is evil, drink your poison yourself.

In the corners of the cross: CSPB
Crux Sancti Patris Benedicti. The cross of holy father Benedict.

Above the cross: PAX
Peace. The motto of the Benedictine order, and a deliberate final word after everything else on the medal.

The poison line has a source. Accounts of Benedict’s life include an attempt by monks to poison him, and the cup breaking when he blessed it. The inscription is not a general curse; it is a specific memory.

Something on this medal needs handling honestly, because a lot of material online gets it wrong.

The edge inscription is addressed to Satan directly. Wearing that inscription is entirely proper and the Church has encouraged this medal for centuries. But there is a real distinction between an inscription carried on a blessed object and a lay person taking up imperative address to a spirit as their own prayer formula.

Catholic practice for the laity is deprecatory: we ask God, Our Lady and the saints to act. Commanding a spirit directly belongs to the solemn rite of exorcism, which under Canon 1172 requires a priest with his bishop’s express permission. That is not a technicality invented recently; it exists because addressing spirits without authority has a long history of going badly for the person doing it.

So: wear the medal, and know what it says. If you want words to pray, use the St. Michael prayer, which asks God to send Michael rather than commanding anything, and is exactly what the laity are given for this.

Have it blessed. Unblessed, it is jewellery. Any priest can bless it and there is a specific blessing for this medal in the Church’s books. It takes under a minute; ask after Mass.

Wear it, or place it. On a chain, on a rosary, in a car, in a wallet, at the doorways of a house, or set into the foundations of a building. There is no rule and no wrong position.

Let it do the one thing an object can do. A medal reminds you, constantly and without words, what you have decided to believe. That is not a small function. Most of what erodes faith does so through forgetting rather than through argument.

This is worth saying plainly, because the medal attracts exactly this error.

A sacramental is not a mechanism. It does not work automatically, it does not work on someone who is treating it as a lucky charm, and it does not work harder if you own more of them. The Catechism classes the mechanical use of holy things as superstition and treats it as a sin against the first commandment, which is a serious classification for a habit most people would call harmless.

The reason is straightforward. A charm is something you use to manage a risk. A sacramental is something the Church prays over so that you carry that prayer with you. One of those is a relationship and one is a technique, and it is possible to swap the first for the second without noticing.

Wear the medal. Have it blessed. Know what it says. And keep going to confession, because that is what actually closes doors, and no medal was ever offered as a substitute for it.