Here is a book for children 3 - 10 years old that teaches them contemplative prayer. Frank X. Jelenek is a member of Thomas Keating's Contemplative Outreach, and Ann Boyajian is the illustrator of this paperback.
Centering prayer is contemplative practice that is often described as a journey to the heart. This book outlines the six steps in the process and recommends that children try it twice a day in six-minute periods. Jelenek notes that there might be a lot of noise going on outside a barking dog, a buzzing bee, coughing, fire engines as well as inside noise thoughts of toys, TV shows, games, candy. All that is okay. Just return to your prayer, remembering:
"In your heart and soul God speaks in silence, where words cannot be found, out loud. But know and trust that God will hear you, even when you don't speak a word. His ear is right next to your heart."
This is a helpful resource that makes centering prayer a soulful adventure!