When a mystical traveler encounters a physical disease, he must try to treat it as much as possible. If this treatment lasts for a long time, he must appreciate it because it leads to a state of spiritual entreaty and supplication. Thus, you can observe of him that praise and invocation of God are constantly flowing from his tongue and heart and he gets accustomed to it. Likewise, it is said in hadith that moaning and groaning by a sick man and the changing his mood in the bed of sickness is itself a form of worship that leads him closer to the glorified God.
Ayatollah Mohammad Saleh Komeily (God graciously preserves him.)Al-matalib al-solokieh
