Does Doubt Belong to Faith?

First Things has an interesting piece I recommend reading here. While there has been quite a lot said on the subject of Bl. Teresa of Calcutta's 'doubt' since the publication of Mother Teresa: Come Be My Light, I think this brief article by Fr. Edward Oakes, S.J. addresses the heart of it.

Mother Teresa’s darkness was a direct result of the actions of Jesus on her soul... she became Christ’s own chosen instrument, living out the same reparative suffering that had already brought redemption to the world—but which now has to be continued by the members of his Body, the Church.

We in the Church are all called to shared in Christ's reparative suffering. This is the way of Love.