All marital relationships will experience a dual season of highs and lows—the good and the bad times. What keeps you going when the going gets tough is your conviction. Conviction simply means the act of being persuaded about your decision.
In my years of experience as a counseling psychologist, I can say that a lot of people who are confident enough to walk away from their marriages or who are not committed to their spouse have never gotten to the point of being totally persuaded or convinced about their marital choices. This is because conviction gives you the strength needed to fight for the survival of any marital relationship against all odds.