This talk gives an exciting overview of the central, although misunderstood or simply ignored, Christian doctrine that God the Father, through the Incarnation of the Son and the sending of the Holy Spirit into our hearts, transforms our humanity so as to allow us to share in divinity. Grave objections that challenge the notion of deification as un-Christian are considered, and answers given from Scripture, holy witnesses to Tradition from both East and West, and the Magisterium.