It is impossible here to regard “the Spirit” as referring to the grace of Unction:  for (1) Baptism was not accompanied by Unction in the time of the Apostles, and (2) we should thus make a false antithesis between the outward part of the one rite (“he dipped his body in water”), and the inward part of the other.  Here, therefore, Cyril attributes enlightenment of the heart by the Spirit to Baptism apart from Unction, and at the same time lays stress upon the difference between the worthy and unworthy recipient of the outward form.