1. the turning of all or part of an organism in a particular direction in response to an external stimulus
From a series of works inspired by words of Joseph Campbell - "What am I? Am I the bulb that carries the light, or am I the light of which the bulb is a vehicle?" "If the body is a light bulb and it burns out, does that mean there's no more electricity? The source of the energy remains. We can discard the body and go on. We are the source." - Joseph Campbell