Praying for happiness
This is the fundamental prayer for happiness from a mind that the Spirit has cleared of illusions. Augustine writes: We love God, therefore, for what He is in Himself, and we love ourselves and our neighbors for His sake.” That doesn’t mean, he quickly adds, that we shouldn’t pray for anything else but to know, love, and please God. Not at all. The Lord’s Prayer shows us that we need many things. However, if we have made God our greatest love, and if knowing and pleasing him is our highest pleasure, it transforms both what and how we pray for a happy life.
Tim Keller in Prayer