Knowledge is covered by ignorance in the world, because of which attachment arises in people.

तस्माद्विज्ञानमेवास्ति न प्रपञ्चो न संस्थितिः ।

अज्ञानेनावृतं लोके विज्ञानं तेन मुह्यति ॥

~ Therefore (in reality) the existence of knowledge alone is there, neither is there any condition of Prapanchk nor of creation. Knowledge is covered by ignorance in the world, because of which attachment arises in people.

तज्ज्ञानं निर्मलं सूक्ष्मं अज्ञानमिति तत्सर्वं विज्ञानमिति मे निर्विकल्पं यदव्ययम् । मतम् ॥

~ That knowledge is pure, subtle, nirvikalpa and imperishable, all the rest (visible prapancha) is mere ignorance. The original authority is of gyana - this is my opinion

एतत्ते परमं सांख्यं भाषितं ज्ञानमुत्तमम् ।

सर्ववेदान्तसारं हि योगस्तत्रैकचित्तता ॥

~ I have told you this perfect Sankhya form of supreme knowledge. This is the essence of all Vedanta and having a single-mindedness in it is yoga.

Sri Rama Gita