Paradox in Robinson Crusoe

"But it was otherwise directed; and it may not be amiss for all people who shall meet with my story to make this just observation from it: How frequently, in the course of our lives, the evil which in itself we seek most to shun, and which, when we are fallen into, is the most dreadful to us, is oftentimes the very means or door of our deliverance, by which alone we can be raised again from the affliction we are fallen into...."  See in text (Chapter XIII - Wreck Of A Spanish Ship)