In Maulana Jalaluddin Rumi's Masnavi, particularly in Book Three, Section 154, a vital spiritual principle is established: any worldly loss or sudden misfortune ordained by divine destiny (Qada) serves as a hidden shield protecting the believer from a far greater, unseen calamity. This lesson, derived from the story of the eagle snatching the Prophet Muhammad's shoe to shake out a hidden venomous snake, teaches complete contentment and submission (Rida) to God's decree. Rumi defines Sufism (Tasawwuf) in this section as the capacity to experience joy in the heart even when sorrow strikes, recognizing that outward hardships are accompanied by inward ease and are ultimately manifestations of divine mercy.