If we are going to build faith sometimes we have to endure trials and live through difficulties without knowing the "why" and without having the "answers" as to why we are suffering. If we know the "why" we don't need faith. If we know the outcome we don't need trust.
God is watching to see if we will handle the situation as a Christian; as God would. Will we surrender completely to God, not knowing the outcome? We must build total commitment to God in this life.