He said that, while we never really talk about it this way, belief in Christ and devotion to Him is hard work. It is not something that comes easily and it is not always enjoyable. We prefer to talk about the times when faith is emotional, sensational, and comforting--but those aren't the average days. Anything worthwhile in this world--with the exception of Christ's astoundingly free gift of salvation but not excluding His work of sanctification that immediately begins to follow--it all takes work.
Belief...faith without sight or touch or sensation...the days of struggle and distraction and overcoming through Christ's strength alone...those are the days of Hebrews 11 and the men and women who conquered challenges through confidence in a truth that didn't feel real. (At least, it didn't feel as real as the obstacles that stood in their way.) That's the kind of faith that conquers, comforting or not.
We know it. We have faith in it. We believe it. And even when it doesn't feel good, we live it.