"The Buddha was very practical, and he realized that attachment to ideas is a serious problem in spiritual work.  He said not to believe anything that anyone tells you, no matter on what authority, including what he himself said.  If a spiritual teaching attracts you, try it out.  See what you get from its practice, what fruits it bears in your life....  Buddhists see faith as willingness to invest in spiritual practice, as confidence in value seen, not as opinions held....  Faith increasingly develops by being confirmed over and again in the fruits of practice."

-- Mary Jo Meadow, Kevin Culligan and Daniel Chowning, Christian Insight Meditation: Following in the Footsteps of John of the Cross