It's really quite simple. If we ever give up on the deep things we know are ours in Christ—things like first love, intimacy with the Lord, and powerful spiritual living in a dying world—we've given in to the lies of the enemy. He loves to have us think that a mediocre life in Christ is the way it should be. Compromise is his domain and lies are his tactic. If we head in either of those directions, we have no hope of being a powerful testimony to a world in his noose—a world that is choking to death.
Why would we, as believers, for one moment compromise our lives and His Gospel for any reason? We need to ask the Lord to never let us give up when things get a little rough. We must resist the lies of the enemy.