When people entertain doubts as to their capacity to carry out the tasks assigned to them by the Divine, they will be weak and powerless. Hence, to accomplish anything, firm faith is essential. Doubts have to be expelled. Everything that happens should be accepted as for one's own good. That is the means to qualify for God's grace. To go on speculating over Swami's words is an insane exercise.
(SSS Vol XXVIII - Chap 22)