A person who endures suffering and illness can achieve a profound spiritual recovery upon changing his ways. Sincere turning to God removes the barriers created by past mistakes, opening the door to divine favor, joy, and the full restoration of one's spiritual standing. As the individual repents, he engages in abundant prayer and deep supplication [מצודת ציון, מלבי״ם]. This heartfelt plea occurs only after his physical pain and hardships have already provided atonement for his earlier sins [רמב״ן]. The speed of God's response is remarkable. Even before the individual finishes praying, God accepts him with love and grace [אלשיך].
Following this divine acceptance, the person experiences a renewed closeness to God, accompanied by a powerful emotional outcry. The primary approach among commentators is that this response is one of immense joy, as the individual thanks God in the house of prayer for saving his soul from death [אבן עזרא, מצודת דוד, תקות אנוש, שטיינזלץ]. Others view this outcry as the intense act of prayer and calling out to God itself [רש״י, רלב״ג]. It can also be understood as a profound clinging of the soul to God [מלבי״ם], or as a reflection of a broken heart and humble submission, demonstrated through the fasting and self-denial that accompany the repentance process [חומת אנך].
At the conclusion of this journey, God fully restores the individual's righteousness. On a basic level, God returns the reward for the person's good deeds without deducting any merits in exchange for saving his life [מצודת דוד, שטיינזלץ]. From a legal perspective, the individual is restored to his previous status, emerging completely innocent in judgment just as he was before he sinned [רמב״ן, מלבי״ם]. On a deeper spiritual level, the earlier sins had created a barrier, disconnecting the person from the commandments he had performed and pushing away sparks of holiness. Through repentance, all those previously detached merits and commandments return and bond with his soul once again [אלשיך, חומת אנך].
This process of restoration is not limited to any single individual. The promise of recovery and renewed merit applies universally to anyone who prays and earns God's favor and watchful care [תקות אנוש].