Suffering of some kind is part of God's Plan of Grace, if you can imagine that. Details of life are any of dozens of features that make up a person's life, things related to his personal life, family life, social life, or community and national life. We identify two types of happiness in life. The first type is human happiness which is happiness derived from any of the details of life. The other type is divine happiness which is the inner joy produced as part of the fruit of the Holy Spirit in the life of the advancing believer in the Christian Way of Life.
Human happiness is temporary and dependent.
It lasts only as long as the thing that provides the happiness. It depends on a detail of life to sustain it. One way of describing suffering is to say that suffering comes from the removal of the human happiness. Suffering by privation - the lack of something necessary such as food, shelter, clothing, transportation. Suffering from the weather - freezing weather or hot, storms, tornados, hurricanes, blizzards, as well as earthquakes, volcanos.