Imagine, there would be stores that keep thoughts in stock and sell them.
Make a mindmap where the branches reflect the various aspects of running a store. For instance: 
Explore: Make a connection between aspects of running a store and selling Thoughts to customers as items in a store.
What did you learn about Thoughts?
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More post about analogies and metaphors:
- Thinking in Analogies
- Analogies and Banologies
- Enacting a metaphor
- A Repertoire of Concepts
- Ways to Recognize Concepts
- Look for Similarities
thinkibility 