We propose that abstraction is an interpersonal process and serves a social function. Research on shared reality shows that in communication, people raise their level of abstraction in order to create a common understanding with their communication partner, which can subsequently distort their mental representation of the object of communication. This work demonstrates that, beyond building accurate models, abstraction also functions to build socially shared models – to create a shared reality.

We propose that cleansing behaviors and other acts of separation or connection have more powerful effects when they are grounded in shared practices – in a shared reality. We conceptualize sensorimotor and shared reality effects as synergistic. Most potent should be physical behaviors performed collectively as a shared practice, grounded both in sensorimotor experience and in shared reality.