By John Grondelski, EWTN News - Writing an essay on the weekly Scripture readings in art grows more challenging in the second half of the Easter season, because the Gospels transition from Jesus’ post-Resurrection appearances and the message of the Good Shepherd — themes either concrete or well-documented in art — to more abstract theology, usually taken from Jesus’ Last Supper Discourse in John’s Gospel, as he prepares to take leave of the Apostles at the Ascension.