Abstract

There is a mystery, present from conception, namely, how the human person, who transcends the individual elements of sperm and ovum, can nevertheless come to exist at the first instant of the sperm’s interaction with the ovum, an event marked by the formation of an “embryonic skin,” or wall. In this essay, the author holds that the full complexity of the human person implies such a profound unity-in-diversity of human being that we must, in the end, let the dialogue between reason and revelation lead us to conclude that the first instant of embryonic life is the first instant that the person comes to exist: that the first sign of embryonic life is a “natural sacrament” of the internal act of God which brings the person to exist, one in soul and body. National Catholic Bioethics Quarterly 12.3 (Autumn 2012): 421–430.