Mahabharata 12.171.23

नूनं ते हृदयं काम वज्रसारमयं दृधम्यदनर्थशताविष्टं शतधा न विदीर्यते

nūnaṃ te hṛdayaṃ kāma vajrasāramayaṃ dṛdhamyadanarthaśatāviṣṭaṃ śatadhā na vidīryate

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