Life can be difficult. At any given time, there are precious people who are strained and stretched to their limit emotionally. There are people struggling with physical pain or pressured by financial difficulties. There are people challenged by disharmony and chaos in their families and their marriages. It's part of life on earth.
Satan tries to keep us focused on our problems so we forget about our promises. He wants us to live shallow, earth-bound lives. Our enemy wants us to focus on the temporary and lose sight of the eternal, because we become dangerous to his plans when we have eternity in our sight.