I am surprised at the flurry of discussion and concern about this aspect of Mother Teresa’s inner life, because spiritual teachers have long taught about the dark night of the soul. St John of the Cross spoke eloquently about this phenomenon, that in many ways it was a common occurrence, God seeking to wean us away from the consolations of God so that we would turn our hearts towards the God of consolations. Even Jesus in a way experienced this desolation when he cried out on the Cross, ‘My God, my God why hast thou forsaken me?’
Mother Teresa wonderfully was no plaster cast saint. She has helped to affirm many who are passing through this period of desolation and dryness when God seems so remote. St Theresa of Avila after one such bout cried out in frustration to God, ‘No wonder your friends are so few given how you treat them!’ My regard for Mother Teresa has been enhanced.
Doubt can be an integral part of faith, when the evidence is never so overwhelming, so incontrovertible. St Thomas is our patron Saint for doubters. We live by faith not by sight and frequently the evidence does not make the leap of faith redundant.
God bless you.