"I'm spiritual but not religious."
It's a trendy phrase people often use to describe their belief that they don't need organized religion to live a life of faith.
But for Jesuit priest James Martin, the phrase also hints at something else: egotism.
"Being spiritual but not religious can lead to complacency and self-centeredness," says Martin, an editor at America, a national Catholic magazine based in New York City. "If it's just you and God in your room, and a religious community makes no demands on you, why help the poor?"
The "I'm spiritual but not religious" community is growing so much that one pastor compared it to a movement. In a 2009 survey by the research firm LifeWay Christian Resources, 72 percent of millennials (18- to 29-year-olds) said they're "more spiritual than religious." The phrase is now so commonplace that it's spawned its own acronym ("I'm SBNR") and Facebook page: SBNR.org.
But what exactly does being "spiritual but not religious" mean, and could there be hidden dangers in living such a life?
Heather Cariou, a New York City-based author who calls herself spiritual instead of religious, doesn't think so. She's adopted a spirituality that blends Buddhism, Judaism and other beliefs.
"I don't need to define myself to any community by putting myself in a box labeled Baptist, or Catholic, or Muslim," she says. "When I die, I believe all my accounting will be done to God, and that when I enter the eternal realm, I will not walk though a door with a label on it."