You may be fired from a job that you really like. You might have a terrible accident or suffer long-term illness. A few of you will want children and not be able to have them. It may be that you are disappointed in your children. It may be that you are disappointed with your parents.
Bad things can and do happen to good people.
It may or may not be anything of your own choosing or doing. You have to have some way to get your life recharged, to get up and get going again. That's the point at which our faith makes so much difference. This promise that we need not be destroyed by those difficulties is an ancient idea. Difficulties show what women are as well.