While on vacation this summer, I attended Mass at a church with beautiful stained glass windows of the Parables.
Parable (from the Catholic Encyclopedia):
The word parable signifies in general a comparison, or a parallel, by which one thing is used to illustrate another. It is a likeness taken from the sphere of real, or sensible, or earthly incidents, in order to convey an ideal, or spiritual, or heavenly meaning. It abounds in lively speaking figures, and stands midway between the literalism of mere prose and the abstractions of philosophy.