Story-telling is becoming recognised as a very effective means of communication. People react better to an interesting narrative than to a boring set of facts or exhortations.

So, telling people your vision, and what you expect them to do to support it, is largely a waste of time.  

But tell them a story set in the future of your organisation, which includes their future, and your can interest, inspire and motivate them to help you create the vision outlined in, and by, the story.