From inner to outer, it has four rings:
- Past, Present, Future
- Active and Passive
- Twelve Nidanas
My question is, what's the third ring? Assuming I know approximately what each word in the third ring means, why are those words in particular placed in those segment of the third ring? What's the relation between the third ring and the other rings? What is the lesson or advice, how is understanding this ring useful/usable towards enlightenment?