Hakim Sana'i's Hadiqat al-Haqiqah and Mahmud Shabestari's Golshan-e Raz both address the absolute spiritual pre-eminence of the Prophet Muhammad, but they employ distinct allegorical models. Sana'i uses an arithmetical metaphor: previous prophets are zeros whose chronological precedence serves only to multiply the manifestation and dignity of the final 'Numeral' (Muhammad). Shabestari, however, uses an astronomical metaphor of the equator: the Prophet is like a figure at the equator under the noon sun, completely shadowless, representing absolute spiritual perfection devoid of material darkness. While Sana'i explains chronological ordering and the concept of the Seal of the Prophets, Shabestari focuses on the complete, unmediated transmission of divine light.