Quote from A Course in Miracles Text Chapter 27 - THE HEALING OF THE DREAM.

T-27.V.9. Your healing will extend, and will be brought to problems that you thought were not your own. 2 And it will also be apparent that your many different problems will be solved as any one of them has been escaped. 3 It cannot be their differences which made this possible, for learning does not jump from situations to their opposites and bring the same results. 4 All healing must proceed in lawful manner, in accord with laws that have been properly perceived but never violated. 5 Fear you not the way that you perceive them. 6 You are wrong, but there is One within you Who is right.