Cultivating A Creative Space

This coming Sunday, I'm facilitating a brainstorm meeting called CPT (creative planning team). We're going to creatively ideate EXODUS 20.

But the task I'm constantly facing is cultivating a creative space without directing thought too much.

How much imagery will lead and how much will blur?

How much vision will cultivate and how much will hold back?

...to explore EXODUS 20 over the course of 10 weeks.

How do I explain these ideas and contexts to a child, a martian, without words, with images, with actors, etc?

Word.
-Ross