According to the traditional doctrine of the Church, the consecrated life by its nature is neither lay nor clerical.
[The Church has] great esteem for the kind of consecrated life in which religious brothers provide valuable services of various kinds, inside or outside the community, participating in this way in the mission of proclaiming the Gospel and bearing witness to it with charity in everyday life. Indeed, some of these services can be considered ecclesial ministries, granted by legitimate authority. This requires an appropriate and integral formation: human, spiritual, theological, pastoral and professional.
…the term "brother" suggests a rich spirituality. "These Religious are called to be brothers of Christ, deeply united with him, 'the firstborn among many brothers' (Rom 8:29); brothers to one another, in mutual love and working together in the Church in the same service of what is good; brothers to everyone, in their witness to Christ's love for all, especially the lowliest, the neediest; brothers for a greater brotherhood in the Church".By living in a special way this aspect of Christian and consecrated life, Religious Brothers are an effective reminder to Religious Priests themselves of the fundamental dimension of brotherhood in Christ, to be lived among themselves and with every man and woman, and they proclaim to all the Lord's words: "And you are all brothers" (Mt 23:8).
Taken from Vita Consecrata by Pope John Paul II