one of the best prayers

It's a good idea to look at Paul's prayers for people and to study what it is he asks for. In Ephesians and Colossians we see several examples of his prayers.
In Ephesians 1:18 he prays to God that God's people may know what it is we really have inherited through Christ. The eyes of your understanding being enlightened; that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints, Ephesians 1:17-19

In Ephesians 3:18 he once again asks God that we "May be able to comprehend with all saints what is the breadth, and length, and depth, and height" Ephesians 3:17-19

So then, that should be our prayer. The Bible tells us that all things are ours. It tells us we have overcome the evil one. It tells us we have the mind of Christ. It tells us the same power that raises Christ from the dead lives in us. It says the same like faith that raised Christ from the dead is in us. It says we have the peace that passes all understanding.

We don't need anything else from God really. What we need is a true revelation of what it is Christ has given us. We need to believe and to know who we are, what we have, and the wisdom to use it.