One of the ways to misunderstand worship is to come to worship for a purpose. It is easy to say about worship: I'm coming to be re-filled for a new week; I'm coming because I love hymns (or whatever kind of song); I'm coming to receive the sacrament (celebrated in a certain form, whether traditional or not, catholic or protestant); etc. When we do this, no matter how laudable the reason, we are worshiping for a reason other than what worship is for. Worship is to give thanks, to be open to God, not coming with our agenda. When we do come with an agenda we run the risk of manipulating God and indulging in magic. This is hard because we have all had the experience of worship that is badly done, lacking content and style, or even if spoken in our native tongue, it still seems to be alien to us. So we are tempted to think that what we should do is seek out what we want in worship. I am, of course, sympathetic to this because it has, for one thing, made churches more responsive to people if they wish to survive and flourish. And this has been a blessing to traditional churches, even though some may die because they won't/can't move. But, and this is a very large caveat, the danger is merely magnified when we go to worship with a particular outcome in mind.
Why do I say this? Let's think a bit more about magic. Magic is the use of a formulaic set of words and actions to bring about a certain outcome; manipulation of whatever the 'magic' is being used on. If you come to worship with a certain outcome in mind (whether it be how you should feel, what you should receive/get out of it, the content, the spiritual nourishment) aren't you doing magic? The minister, musicians or preacher become the magicians for you to get what you want from God.
What's the alternative? A couple of places to start. First, let's not pre-decide what we should receive from worship or how we should feel. Maybe your expectations are wrong. Maybe the conversion the gospel asks of us is exactly directed at our expectations of God. Second, come to worship to give thanks for all the graces in life, especially the grace of Christ and the Spirit. What we receive that day, if we come to worship without expectation, can be received as gift, further grace in our lives. this means that, instead of preconceived expectations of what God/worship should do or be like, let us approach worship with the expectation that God will indeed be present (even, at times in an apparent absence or dryness), but not necessarily as we would like.