Alas! If an unsubstantial vision of the temporal birth of the Son of God so powerfully ravished and delighted the heart of a child, what will it be when our minds, gloriously illumined by the blessed light of glory, will see that eternal birth, by which the Son proceeds, true God of true God, divinely and eternally born of the Father? Then will the soul be deified, filled with God, and made like to God, by an eternal and immutable participation of God, uniting Himself to it as fire does to the iron which it penetrates, communicating its light, brilliancy, heat, and other qualities, in such a manner that both seem one and the same fire. –-St Francis de Sales

St Francis de Sales