When illness or obstacles appear in our lives, we must ponder our own minds. What do we ponder? We must not ponder who to blame, but we must ponder our own minds to remove the dusts in our minds. These dusts are the evil thoughts of regret, covetousness, self-love, greed, and arrogance. This is how we purify our minds. When our minds are purified, our hearts will only bring upon joy. This is what God is trying to show us by the blessing (illness as guidance).