Yōga Sūtra 4.17

तदुपरागापेक्षित्वाच्चित्तस्य वस्तु ज्ञाताज्ञातम्।

taduparāgāpēkṣitvāccittasya vastu jñātājñātam।

[तत् उप राग अपेक्षित्वात् चित्तस्य वस्तु ज्ञात अज्ञातम्।
tat = then; upa = conditioned by; rāga = passion; apēkṣitvāt = expectations; cittasya = grasped by chitta; vastu = object; jñāta = is known; ajñātam = yet unknown;]

Then conditioned by passion and expectations, the object grasped by the Chitta is known, yet unknown.