From an upcoming book of correspondence between Mother Theresa and her superiors:
The letters, many of them preserved against her wishes (she had requested that they be destroyed but was overruled by her church), reveal that for the last nearly half-century of her life she felt no presence of God whatsoever — or, as the book’s compiler and editor, the Rev. Brian Kolodiejchuk, writes, “neither in her heart or in the eucharist.”
From Metafilter comments:
My view: Mother Teresa saw the reality of life more intimately than nearly anyone who has ever lived; she saw no kind and benevolent God because it doesn’t exist. Kindness and benevolence comes from us, not an invisible superhero in the sky, and there wasn’t much of it to be found toward her chosen charges.
Whether or not you believe in a god, or God or gods, I think the struggle of faith is so rarely articulated and seen as a fundamental weakness of the faithful – instead of an ongoing journey. I’ve always thought that you sorta have to nail Christ to the cross yourself to see if that is really what you believe instead of being spoonfed a belief system from a nomadic gaggle of shepherders.