What is the interpretation of the unanswered prayers of devout parents who are experiencing increasing problems despite their religious commitment, and how does this affect their daughter's faith and her questions about the value of being a righteous Muslim?

These satanic whisperings aim to divert the servant from his religion and make him despair of Allah's mercy. A Muslim must believe in Allah's divine decree and destiny, for Allah is more merciful to His servants and knows what is best for them, whereas the servant's perspective is limited and does not grasp all consequences. What Allah destines for the believer is good for him, and trials expiate sins and elevate ranks, as happened with the prophets and examples. Trials urge the servant to supplicate and pray, and patience with them is a sign of faith, followed by much good. Calamities occur due to the sins of the servants, and this prompts them to repent and seek forgiveness. One must supplicate and not despair of an answer, for supplication hastens it, or averts evil, or stores up reward. These thoughts represent ill manners towards Allah and a poor opinion of Him, and one must seek forgiveness and repent.