Lujjatun-Nur [The Ocean of Light] was written by Hazrat Mirza Ghulam Ahmad, the Promised Messiah(as) and its purpose was to convey the message of the revival of Islam to the Arab and Persian world.

Lujjatun-Nur is a timeless writing. It depicts the condition of the Muslims and the turmoil the Muslim Ummah faces. The Promised Messiah(as) outlines his claim and the need for a reformer, presenting arguments in support of his holy person being the Messiah of the Latter Days. When we read this writing and reflect upon the Muslim world today, we find a robust analysis that holds true even after 120 years: events have unfolded exactly as the Promised Messiah(as) foretold.