“Rejoice always, pray without ceasing, in everything give thanks; for this is the will of God for you in Christ Jesus” (1 Thessalonians 5:16-18). There’s a synergy between these three commands. It’s easier to rejoice when you’re praying continually and giving thanks in everything; it’s easier to pray continually when you’re rejoicing always and giving thanks in everything (after all, to whom are we to give thanks for things like existence?); it’s easier to give thanks in everything when you’re rejoicing always and praying continually.
But all these require that you be here now and do what you’re doing, thinking not of other things.