Hi Dave, I have the idea that a piece of paper can function as the threshold. To make it tangible. A safe place to explore different options in the liminal area. I made a start in working that out here.

https://medium.com/@kimsvandenberg/how-to-get-out-of-your-thinking-groove-spark-your-thoughts-by-using-your-eyes-519ff1934a66

I am exploring how visual thinking can help you to reveal your ‘hidden’ beliefs. The ones that are so obvious to you that you cannot see them. What are your thoughts on that?