Catechesis of the Good Shepherd - Jesus said, "I am the Good Shepherd...the Good Shepherd lays down His life for the sheep...I know My sheep and they know Me, just as the Father knows Me and I know the Father." John 10. The Level 1 atrium is a specially prepared environment for young children where they learn to know and love the Good Shepherd by praying, listening to Bible presentations, and working with related materials. Catechists (teachers) journey with them as co-learners filled with the wonder of God's love. Young children have a great capacity to experience God in Christ and the atrium is a bridge which helps them to experience more fully the life of the church.