I don't know that I understood how completely L'Engle's Christianity infused this book before. Or perhaps it's more her theism, rather than any particular religion. It's indelibly woven into the plot, even. It's fascinating to me, when I revisit childhood favorites, how totally oblivious I was to religious content, and how now it's blindingly obvious. I do love this book. Meg is so utterly real, especially in her fury at her father's failure to save everything and everyone. How dare he be human? Aunt Beast is one of my favorite inventions. I want her to be real, and if it's at all possible, I'd like her to be my deathbed companion.