In the previous part, we discussed divine plan for human salvation in general and then we focused on the role of hardship in human life and what the faithful can achieve if they forebear the hardships with patience. We also stated that God will not impose more on the faithful than they are able to endure, though He might gradually increase their capacity and their hardships accordingly, like a good teacher or trainer who gradually introduces to his students more difficult subjects. In this world, the hardships of those whom God loves may increase so that they become more detached from this world and be more attached to the spiritual life. In this part, we will study how one can spiritually gain from mourning for Imam Husayn and his sufferings.