By its primary relationship, where do light and darkness belong?

Murāʿāt al-Naẓīr, Corresponding Endings, Irṣād and Mushākalah

• Congruity, since both belong to a shared experience
• Muqābalah because there are two distinct words
• Apparent congruity from an unintended remote sense
• Ṭibāq, since the meanings are opposed