In Book Six, Section 75 of the Masnavi, Rumi explores the divine wisdom behind creating opposing forces in the world. He explains that God established a vicegerent (Adam) with boundless purity to reflect His sovereignty, but simultaneously created an opposite out of darkness (Iblis). Rumi metaphorically describes this cosmic conflict as two banners—white and black, representing justice and injustice—which continue through history in figures like Abel and Cain, or Abraham and Nimrod. This allegory illustrates the philosophical principle that the full manifestation of divine attributes requires contrast and opposition in the created world.