The sciences of astronomy and chronology, the history and geography of Shiism, statistics and probability, philosophy and mysticism, and the science of letters and numerology are among the academic and seminary disciplines that have converged to substantiate and demonstrate a precise “Iranian, Shiite” sign. This sign is the confluence of four Prophetic lines on a specific day in the Solar calendar. To elaborate, the lineages of descendants, the line of successors, and the timeline of the Hijri era are three linear sequences that originate from the Seal of the Prophets Peace and Blessings of God Be Upon Him and His Progeny and converge once more at a single point. This point is the birth date of his seventh descendant and eighth successor, recorded on the 8/8/1388 of the Solar Hijri calendar.Regarding this point of confluence, two hypotheses are probable: “Coincidence” or “Unitary Divine Craft.” These are two hypotheses wherein, if the latter is correct, it will yield significant implications. Consequently, we presented these two hypotheses to the relevant sciences, including Philosophy, Probability, and the Science of Numbers, to determine whether we are facing a “coincidence”—and thus a “notional signification”—concerning the eighth Imam of the Shiites, or a “Unitary Divine Craft”—and thus a “verificatory signification.”From the perspective of philosophy, this phenomenon is an effect with four causes. From the perspective of probability theory, it possesses proportions that transform the likelihood of “Divine Craft” into certainty. And from the perspective of the science of letters and numerology, it is the “subject of discourse” of the mathematical language of the Quran. This language reveals that said symmetry is, in reality, the confluence of four lines of Prophetic origin, the fourth of which is the Quran itself. Therefore, just as this sign introduces the referents of the Twelve Successors, it is also a miracle of the Seal of the Prophets. A miracle that, in addition to confirming the monotheistic religion and its representatives, also verifies the monotheistic nature of the actions and sciences effective in its own substantiation and demonstration.