This is taken from a longer essay by Fr. Mark Daniel Kirby, OSB over at Vultus Christ.
This evening we had a splendid Vespers at the beautiful Cathedral-Basilica of St. Augustine to welcome our new Bishop. All that beauty – sonic, visual, literary (for the Psalms are great poems) – and then I came across this bit (while looking for something else, of course).
If it is true, let us choose our contemplations carefully.
We Become What We Contemplate
Philosophers, psychologists and saints agree that we become what we contemplate. Look at goodness and you will become good. Look at beauty and you will become beautiful. Look at truth and you will become true. Look at purity and you will become pure. Saint Clare of Assisi, herself so marked by Gospel of Saint Luke, wrote to Agnes of Prague: “Gaze upon Him, consider Him, contemplate Him, as you desire to imitate Him” (Second Letter to Agnes of Prague).