Jesus was known to go off on his own and pray. A few times we get to listen in. John 17 is one of those. In this sermon, Pastor Daron Jagodzinske explores how we can learn to pray by listening in on Jesus praying.

The artwork that is discussed is a Andrei Rublev painting called The Trinity or The Hospitality of Abraham.
https://en.wikipedia.org/wiki/Trinity_(Andrei_Rublev)