Mrs. Darling first heard of Peter when she was tidying up her children’s minds. It is the nightly custom of every good mother after her children are asleep to rummage in their minds and put things straight for next morning, repacking into their proper places the many articles that have wandered during the day. If you keep awake (but of course you can’t) you would see your own mother doing this, and you would find it very interesting to watch her. It is quite like tidying up drawers.
You would see her on her knees, I expect, lingering humourously over some of your contents, wondering where on earth you had picked this thing up, making discoveries sweet and not so sweet, pressing this to her check as if it were as nice as a kitten, and hurriedly stowing that out of sight. When you wake in the morning, the naughtiness and evil passions with which you went to bed have been folded up small and placed at the bottom of your mind; and the top, beautifully aired, are spread out your prettier thoughts, ready for you to put on.
– J M Barrie