Prehension (philosophy)

Prehension is a fundamental concept in Alfred North Whitehead's process philosophy. It establishes the basic experiential relation applying to all entities of reality by which the present is realised out of the past. Entities selectively incorporate aspects of what they perceive, or prehend, into themselves. It is central to Whitehead's metaphysics and it identifies a mechanism by which both perception and memory are essentially the products of a common metaphysical process.