In Book Two, Section 81 of the Masnavi, Rumi asserts that falsehood and misguidance derive their allure entirely from their resemblance to the truth. Using the metaphor of currency, he explains that counterfeit coins (قلب) are only circulated and accepted because genuine gold coins exist and are universally valued. Just as a lie relies on the existence of truth to be believed, flawed or opposing religious sects contain fragments of truth that make their doctrines appealing to followers. Therefore, absolute falsehood cannot exist independently; every false claim or counterfeit concept borrows its 'light' (فروغ) from a corresponding reality.