"It matters cosmically"

The author of my favorite children's book has died. The New York Times on Madeleine L'Engle:
The book used concepts that Ms. L’Engle said she had plucked from Einstein’s theory of relativity and Planck’s quantum theory, almost flaunting her frequent assertion that children’s literature is literature too difficult for adults to understand.
Her deeper thoughts on writing were deliciously mysterious. She believed that experience and knowledge are subservient to the subconscious and perhaps larger, spiritual influences.
“I think that fantasy must possess the author and simply use him,” she said in an interview with Horn Book magazine in 1983. “I know that is true of ‘A Wrinkle in Time.’ I cannot possibly tell you how I came to write it. It was simply a book I had to write. I had no choice.
“It was only after it was written that I realized what some of it meant.”