For some of us our prayer time is a source of pain and difficulty because we pray selfishly. He prays with joy and thanksgiving because of what God had done. As he awaits trial in Rome, Paul spends his time remembering with joy those who stand with him in the faith - NOT focusing on all the hundreds who had done him wrong. We don't see a man eaten up with bitterness, but a man whose heart is overflowing with thanksgiving. Nor should there be obscenity, foolish talk or coarse joking, which are out of place, but rather thanksgiving.
Defeats worry .
Rounds out my prayer life . Takes focus off of me and onto the Lord. Don't take Him for granted - seekHim out. Pray and thank God for what you see Him doing. Tell Him specifically what you are thankful for.