I find that discursive reviews are, in fact, a form of practice - like following a good smell to the kitchen.
haha That's a great phrase
To carry on the conversation.. is the following description along the lines of what you're thinking about? --
When you mention "ultimate" causality (verses "conventional" causality) this is a view of space where form doesn't take on discrete positions or even discrete states. Subatomic particles don't have definite positions in space.
However, in "conventional" space, things that exist can be broken down into discrete elements and have unique identities relative to things around them. Therefore it's easy to show how one "object" can depend on others through previous causes and conditions. Or in other words, this is the law of interdependence at a level useful for daily life.
But when you talk about interdependence at the ultimate level, it gets a little dicey. One viewpoint of the ultimate is that nothing unique or discrete exists (or doesn't exist).. so it's all in unity. and therefore no interdependence (or maybe full dependence?) Also if there's no linear causality then time doesn't exist, right? It's one of those fun zen things to think about
The Dali Lama has some excellent teachings of this philosophy, or check out Nagarjuna, or others. There's a lot of ways to try to make sense out of this and write about it