Mazzarella, Patricia.  "The Square Dance of Eternal Objects."  Process Studies 17, no. 1 (Spring 1988): 1-8.

Abstract

Whitehead describes a form for the realization or actualization of a concrete occasion as an object which is abstracted from time.  This phenomenon, in his terminology, is an 'eternal object' which 'ingresses' into an actual occasion.  The focus of this paper will be on the nature of this primary structure by which experience is unified, that which is the 'how' and the formal 'what' of the process of being.  This nature is to be found in the ideal patterns which Whitehead indicated with the term 'eternal object'.  [Abstract from The Philosopher's Index]