Stories have been told for thousands of years. And they are still one of the BEST ways to impart some advice you want to give. I'll bet you cannot remember all the advice you were given as a child by parents and teachers. But I also bet you do remember virtually every story you were told. Harness the natural affinity humans have for stories to improve your communication.
This is a must for parents!
And for a for some of my favorite metaphors look for them amongst our other blogs here on this site.