It means that though the Witch knew the Deep Magic, there is a magic deeper still that she did not know. Her knowledge goes back only to the dawn of Time. But if she could have looked a little further back, into the stillness and darkness before Time began, she would have read there a different incantation. She would have known that when a willing victim who had committed no treachery was killed in a traitor's stead, the Table would crack and death itself would work backwards.
C. S. LewisA real desire to believe all the good you can of others and to make others as comfortable as you can will solve most of the problems.
C. S. LewisAll joy... emphasizes our pilgrim status; always reminds, beckons, awakens desire. Our best havings are wantings.
C. S. LewisThe Church exists for nothing else but to draw men into Christ, to make them little Christs. If they are not doing that, all the cathedrals, clergy, missions, sermons, even the Bible itself, are simply a waste of time. God became Man for no other purpose.
C. S. Lewis