Multivalence signalled the state in which she preferred matters to be perceived. A concept from a non-core course, memorized for the moment, surfacing again in the actuality of day to day some lifetimes later.
That something is one thing and another at the coincident moment, the same and different both. Which is not to say the one thing can be anything at all. Just one of a finite number of varying states, or configurations.
A rarefied matter of quantum physics, edge-of-field chemistry--at root, permutations of a single primordial and/or post-eternal thought.
It was how she explained her relationship with Martin, to herself. How they both could see it in slightly different oscillations, or more than slightly, and it be the same thing.