Louie Giglio, in his book, "The Air I Breathe [worship as a way of life]" writes on page 101 that it is vital that during worship services we focus our gaze upon God and God alone. The primary reason we are in the church sanctuary on each Sunday morning is to worship Him!
Giglio does admit that our minds do wander on Sunday (Mine does--and I am the pastor!). Nevertheless, we are to work hard to fix our gaze on God the Most High. Scripture meditation and prayer a few minutes prior to the beginning of the service are essential to prepare our hearts and minds.
Praying for Revival