“Faith” in biblical terms is never a bare decision, or a general “spiritual” approach to life. It is always defined by its content, and the content of saving faith must be Jesus Christ. It is therefore certainly not enough to assume that anyone with however vague a “religious” approach to life must be a Christian in disguise; some of Jesus’ harshest words were reserved precisely for the “religious” people of his day.
- N.T. Wright, sometime Bishop of Durham [UK]
In other words, if you feel that you are "spiritual" but not "religious", and define this by holding vague and superficial notions, mostly a hodgepodge of things overheard, repeated by another, or seen in a greeting card or book by a celebrity, you may only be some sort of puffin.