صُدْغُ الْحَبِيبِ وَحَالِي كِلَاهُمَا كَاللَّيَالِي
The beloved’s side-lock and my condition are both like nights.
Taswiyah compares several subjects with one model. The beloved’s side-lock and the speaker’s condition are two subjects; nights are the shared model.
The side-lock may resemble night in blackness, while the speaker’s situation evokes dark distress. Each subject can reach the same model through its relevant aspect.