The little gospel of John by itself is wonderful... and like any good book, should be read from beginning to end rather than piecemeal and in random order. It is a narrative, so just ask her to read the story and then you two can talk about it's meaning.

It's wonderful that this is more than just a wonderful story, but God's own everlasting and infallible word, energized by the Holy Spirit! Thank you for sharing it with someone who needs it!