Their name, "Sisters of Mary Immaculate”, already expresses a peculiar feature of the spirituality of their founder and his mission. Father Domenico Masi regarded the Virgin Mary as their "Older Sister" and often reminded his nuns the following: «Daughters, be humble, open and intelligent like the Holy Virgin Mary; be Our Lady your guide and counsellor».
This kind of spirituality, based on the mystery of the Immaculate Conception of the Virgin Mary, still today is at the core of the life of the Sisters. In the new constitutions of 2007 the following can be read: «In the Immaculate Conception of the Virgin Mary we can see the absolute mystery of God’s selflessness, as He is the One who loves and saves, as well as the total dedication of the being, who offers herself without reserve. In the Holy Mary we can find the perfect image of our consecration and the holiness we are called to look at as well as the force from which our apostolic and missionary action draws inspiration».
As nuns, the Sisters of Mary Immaculate work to «live the vows of chastity, poverty, obedience, according to the evangelical spirit; through our daily offer of a completely chaste heart and body, a poverty that makes us rich of the richness of Christ; through the obedience that imitates the obedience of Christ, ‘who became obedient for us even to death, dying on the cross’, and the ‘fiat’ by Mary Immaculate».
As their spirituality is focused on the figure of the Virgin Mary, the core of their personal and community life is the Mystery of Christ, who is met and acknowledged every day in the Eucharist.
In the Constitutions the following can be read: «When living the Eucharistic Mystery, we keep the exhortation by our Founder alive: “Be each one of us like a tabernacle, a ciborium, a monstrance. Is it not like heaven to be chosen to ‘contain’ Jesus, give Jesus, show Jesus, is it?”. The Eucharist must have a special place in our life, because it is at the table of the Eucharist that our communion of life and prayer is filled with Christ and the Holy Trinity: “All of them may be one, Father, just as you are in me and I am in you. May they also be in us”».
The Sisters live in communities and it is actually in the Eucharist that their 'we' takes shape in order to be able to embrace the whole world.