Devising the moment
The repetition of a script and specified (documented) dramaturgy forms a sort of solid foundation upon which the audience can exercise their pre-conceived expectations and, ideally, locate a new perspective within familiar patterns.
If the script and documentation are removed, the actor is then cast back to fundamentals of movement, breath, and observation.
Devised theatre encounters each "performance" as a moment inside a mystery. The only rule is to be present, responsive, and committed.