In Jalaluddin Rumi's Masnavi, the delicate balance between divine determinism (jabr) and human free will (ikhtiyar) is a profound philosophical theme. Rumi illustrates this distinction using the metaphor of two shaking hands: a hand that trembles from an involuntary medical condition and a hand shaken intentionally. While both movements are ultimately sustained by God's creative power, they are fundamentally different in nature. Rumi argues that the undeniable proof of human free will lies in the experience of regret; a person repents for an intentional action, but never feels moral remorse for an involuntary tremor. This theological dynamic is further explored through the contrast between Adam and Satan. After sinning, Satan used determinism as an excuse, blaming God's decree by saying, 'Because You led me astray.' Conversely, Adam exhibited profound spiritual courtesy (adab) by taking personal responsibility and confessing, 'We have wronged ourselves.' By acknowledging his moral agency rather than hiding behind divine predestination, Adam earned God's forgiveness, demonstrating that spiritual maturity requires embracing personal accountability.