Quote below references the priesthood and their need for communal living. Taken from
Address to his Holiness Benedict XVI to the Priestly Fraternity of the Missionaries of St. Charles Borromeo
In an address to the Priestly Fraternity of the Missionaries of St. Charles Borromeo on the 25th anniversary of its founding, the Holy Father went on to say that it “may certainly be true” that living in community is “a form of help in the face of the solitude and weakness of man.” Still, he stressed, communal living is about more than this:
“Communal life is in fact an expression of the gift of Christ that is the Church, and it is prefigured in the apostolic community from which the priesthood arose. . . . Communal life thus expresses a help that Christ provides for our life, calling us, through the presence of brothers, to an ever more profound conformity to his person. Living with others means accepting the need of my own continual conversion and above all discovering the beauty of such a journey, the joy of humility, of penance, but also of conversation, of mutual forgiveness, of mutual support.”
This seems like something lay people could use and share in, too.