This article was written by Dr. Cornelia Tsakiridou, associate professor at LaSalle University and author of Icons in Time, Persons in Eternity.  The content is based on the talk Dr. Tsakiridou gave at Princeton University on March 13th, 2014 which was sponsored by Princeton’s Orthodox Christian Fellowship and Florovsky Society. Introduction (1) Saint Porphyrios the Kausokalyvite used to…