I offered the following definition.
Corporate worship is the work we do together of bringing honor to the Triune God, to whom we are connected through our collective and individual relationships with Christ Jesus. Empowered by the Holy Spirit we together honor him through adulation, prayer, by listening to his Word, and by sharing in the sacramental means of grace he provides. Sometimes we are deeply moved by and find joy in the sense of his presence. At other times his presence is troubling and disconcerting. And even when he feels distant, by faith we believe he is present at the gathering of his people and we continue on with the work of worship.So, I obviously come down on the side of seeing worship as work. And I would point out that even the most intimate of human relationships requires work. Love is not something that just magically happens between two people. That's infatuation. Love requires work -- at times being there when you're distracted, pitching in when you'd rather be doing something else, staying close when you feel frustrated and distant... Our relationship with God is similar in nature.
However, I would suggest that there is fulfillment in good work. As serendipity to the work we discover joy and freedom. We are built up and encouraged -- all the things which if we pursue them on their own become fluffy and shallow.
My point -- We should not shy away from the work of worship, for in our focus on the God who is truly other but who graciously reveals himself, we find our own place in life. It IS something we work at. What the Apostle Paul says of his own preaching is true of worship in general -- "I work hard and struggle for this goal with his energy, which works in me powerfully." ~ Colossians 1:28 (CEB)
Worship is work.