I think we need to be careful about our use of metaphor in spiritual teaching. Metaphors are so repeated in scripture and so bandied about by contemporary teachers that our listeners begin to think of everything as metaphor. A concept such as “Jesus is King” becomes just a metaphor.
If we are not careful, our metaphors will strip the reality of our faith away. The concept of a spiritual battle, for instance, may feel like a salient way to describe an inner conflict, when in fact the concept of spiritual battle is a description of reality.
One must be careful to separate one’s metaphorical expressions of truth from truth itself.