I am shaken, because I see you suffering for so long. A certain relief and strength in my suffering with you is only the inner certainty that your pains are a sign of God's love for you. Look at them in this light and you will bear them more easily. As it looks with you, I think you should calmly set aside all human means and completely surrender yourself to God's care. Perhaps God is only waiting for this surrender and for your unconditional faith in Him to heal you. After all, despite all efforts, the physical means did not have the expected effect. On the contrary: the illness worsened. You will not be tempting God when you unconditionally surrender yourself into His hands and look only to Him.
(St. Lawrence of Resurrection, correspondence, letter no. 14)