Whether we are Protestant, Roman Catholic, or Orthodox (or Anglican, for those who do not like to be lumped in with Protestants), worship is hard work. Perhaps this is why it is liturgy is called the work of the people. It takes a significant amount of effort and energy to remain focused on the reality of our relationship with God as evidenced in a worship service. It is too easy to be distracted by the praise band, the choir robes, the stained glass, the icons, the incense, the new chairs, or the people gathered around us. Worship is hard work.
As part of his post, Steven also addresses the inadequacy of of our calls to worship. Interesting post. Check it out here.