Write the vision, and make it plain upon tables, that he may run that readeth it. For the vision is yet for an appointed time, but at the end it shall speak, and not lie; though it tarry, wait for it; because it will surely come, it will not tarry.
[ Habakkuk 2: 2 (KJV) ]

"The Enemy allows this disappointment to occur on the threshold of every human endeavour... In every department of life it marks the transition from dreaming aspiration to laborious doing. The Enemy takes this risk because He has a curious fantasy of making all these disgusting little human vermin into what He calls His 'free' lovers and servants- 'sons' is the word He uses, with His inveterate love of degrading the whole spiritual world by unnatural liasons with the two-legged animals. Desiring their freedom, He therefore refuses to carry them, by their mere affections and habits, to any of the goals which He sets before them: He leaves them to 'do it on their own'. And there lies our opportunity. But also, remember, there lies our danger."
(The Screwtape Letters)