Which sentence from A white heron most closely express its theme

I like this one,

"Were the birds better friends than their hunter might have been--who can tell? Whatever treasures were lost to her, woodlands and summertime, remember! Bring your gifts and graces and tell your secrets to this lonely country child!"

This has to do with the character Sylvia, who has chosen companionship with Nature over that of her own kind. Sylvia gives up everything to protect the White Heron. She hence becomes an extension of her natural surroundings.