I had explored this urge before. I began collecting archetype images from the internet - isn't is a wonderful tool when you can type in "gate" on Google images and thousands of images come up? Of course, there is copyright, but I used these images for reference photos, so none of my personal images resulted in a direct copy of someone else's photo. I made 5"x 7" cards, and would lay them out the same way as above : which image "called to me"? But I didn't actually get around to the story telling part. I just loved the images!
Before any of this happened, I'd play with my daughter when she was little, and we'd tell stories with her toys. It was natural and effortless. She had a fairytale felt board and also a fairytale stamp collection, which of course were "archetypes" and I would do the same thing : pick a character and tell the story as it went along on its own volition. One night, with my present husband, he said "Tell me a story" and I proceeded to verbally relate a story that was playing out in my mind like a movie. It was an amazing story of transformation, involving a wolf and a maiden. I understood the symbolism of the story, later. It was a lovely idea and I will share it here another day.
So my moral of this story is - don't be embarrassed about unexplainable, innocent urges! These are our creative muse trying to communicate to ourselves and the world about the natural healing character of our deepest self. We can heal ourselves and our communities when we nurture and listen to this limitless well of wisdom and love.