I have long considered Mother Teresa to be a somewhat ambiguous figure even before she died and the private journal expressing her painful doubts came to light. I was troubled by her practice of witholding pain medication from dying patients, her collusion with the wealthy - no matter how corrupt - to solicit funds and, of course, her vigorous condemnation of birth control in areas of great poverty.
Of course, everyone on a spiritual path could be seen (at least by someone) to be an ambiguous figure, I suppose.
So with that caveat, I offer the following quotation which I consider to be very wonderful indeed:
The above painting is from an exhibition at the Royal Academy in London entitled "The Poetry of Silence".
Silence of the heart is necessary so you can hear God everywhere — in the closing of the door, in the person who needs you, in the birds that sing, in the flowers, in the animals.
— Mother Teresa in No Greater Love