My latest challenge is a prayer by Paul Tripp: rescue me "every day until my deepest pleasures are nowhere to be found in the creation and only to be found in the creator.
It is so beautifully logical - why would I take more pleasure in the creation than the creator? And yet so often I do!
I would like to highly recommend Paul Tripp's book, Whiter than Snow. It is a series of bite-sized meditations on Psalm 51 which only take 5 minutes each to read. They are pretty thought provoking and well worth a read.