I don't know any other way to be holy. If you are serving others, let it be a physical prayer. There is no mystery or secret. Prayer is communion with God, and communion with God is detachment from "the world, the flesh, and the devil." I suppose the post is misnamed a bit, because it doesn't have to be vocal prayer. Though of course your face isn't likely to come off, in any case. We feel these existential moments of dread at times, and you have to wonder what would happen if we prayed, instead of distracting ourselves. Let's find out.