Mahabharata 12.204.8

अव्यक्तनाभं व्यक्तारं विकारपरिमण्डलम्क्षेत्रज्ञाधिष्ठितं चक्रं स्निग्धाक्षं वर्तते ध्रुवम्

avyaktanābhaṃ vyaktāraṃ vikāraparimaṇḍalamkṣetrajñādhiṣṭhitaṃ cakraṃ snigdhākṣaṃ vartate dhruvam

Our plain-language meaning of this verse is waiting for scholar review.