We say this when we have been waiting for something good to happen in our lives, not when illness or tragedies occur.
Life is filled with waiting.
College students are waiting for their grades to come in and their parents are waiting to see if they will ever learn what those grades are. Ambitious workers are waiting for their chance to move up the ladder to have more power and make more money. Wives are waiting for husbands to give them more attention and for children to grow up. We re all waiting for Microsoft stock to recover. Our country is waiting to see if all this talk about bipartisan leadership will ever really happen.