The author had been told by her counselor to get marriage advice from the first person she saw at AA. So she went to a known schizophrenic to prove the craziness of this statement. And lo and behold, the crazy guy gave her some of the most eloquent Christian advice you will ever hear.
God works through the lowly and humble. If you can't listen to them, you will miss Christ in your world.
I won't spoil the whole thing, but I loved his response to what to do if you pray for an answer and don't hear anything from God:
If God hasn’t spoken, do nothing. Fulfill the contract you entered into at the box factory, amen. Make the containers you promised to tape and staple. Go quietly and shine. Wait. Those not impelled to act must remain in the cathedral…
What a beautiful way to talk about being content in the life God gave you, and partnering in Jesus from moment to moment. This one paragraph is as beautiful a presentation of Luther's teachings on vocation as one is ever likely to find.