I recently discovered - or rather, rediscovered - a word for the kind of movement I'm going for.
It's Butoh, a Japanese avant-garde dance (form? technique? philosophy?) "tradition." Check out a video from one of the more renowned Butoh groups here.
I'm not married to the form of Butoh (even though it is fucking awesome), but I love what lies beneath it. I'm completely infatuated with how Butoh approaches performance, how it embodies ideas, objects, and creatures instead of just expressing them. Butoh is the essence of what I want to communicate to those who put on my work. I want to write in a way that's "empty" - that is, not imposing a form or meaning, but allowing it to reveal them via performance. Perhaps, for a better visual metaphor, a script that's like water - substantial yet without form.
I was going somewhere with this at first, but I lost my thought. Hm. I guess I'll expand on it later.