Sometimes over the years we unconsciously put idols in our heart, such as our family, our jobs, our responsibilities, our image. If God loves us enough, He steps in to purge them out so His light can regain that place in the heart that was created for it. The treatment can be painful but the cure is worth it. Be patient with the treatment and know that it is only Allah who will love you enough to cure you. Still the mind and open your heart, trust God. He is light upon light and the human heart was created to know Him.