M4:458 — باز چون خورشید جان آفل شود / نور جمله خانه‌ها زایل شود

This beyt is part of Rumi's extended analogy distinguishing between two types of 'soul' or 'life force': the animal soul (جان حیوانی) and the divine soul (جان ربانی). He first uses the example of individual lamps in houses (M4:452-453) to illustrate that the animal soul, tied to physical life and sustenance, is distinct and independent in each being; if one lamp goes out, the others remain lit. This is not the case for the divine soul.

He then shifts the metaphor to the sun (M4:455-457). The sun is a single, universal source of light. Even though its light appears in 'a hundred houses' (M4:456), it is fundamentally one light. The preceding couplet (M4:457) states that as long as the sun shines, its light is 'fixed' in every house. This beyt (M4:458) completes the analogy: if that single, universal 'sun of the soul' (خورشید جان) sets or declines, then all the lights that derived from it in individual 'houses' (souls) will also be extinguished. This emphasizes the unity of the divine source and the interconnectedness of all spiritual life, in contrast to the independent nature of individual animal lives. It foreshadows the idea of the prophets and saints being 'one soul' (کنفس واحدة), where the denial of one is a denial of all.