None can know how difficult it is to enter into the kingdom of heaven, but those who have tried—tried hard, and have not ceased to try. . . . Demands unknown before are continually being made upon the Christian: it is the ever fresh rousing and calling, asking and sending of the Spirit that worketh in the children of obedience. When he thinks he has attained, then is he in danger; when he finds the mountain he has so long been climbing show suddenly a distant peak, radiant in eternal whiteness, and all but lost in heavenly places, a peak whose glory-crowned apex it seems as if no human foot could ever reach—then is there hope for him; proof there is then that he has been climbing, for he beholds the yet unclimbed; he sees what he could not see before; if he knows little of what he is, he knows something of what he is not.

— thus George MacDonald