योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-167, verse-36

मुधा व्योम्न्येव पृथ्व्यादितया वेत्ति तदा तदा ।
स्वस्यैव तस्य भानस्य धत्ते पृथ्व्यादिकल्पनाम् ॥ ३६ ॥

mudhā vyomnyeva pṛthvyāditayā vetti tadā tadā ,
svasyaiva tasya bhānasya dhatte pṛthvyādikalpanām 36

36. Whenever our misconception portrays its concept in a material form, or gives a name and form to an airy nothing; we come to see the same form in our imagination, in the empty void of our mind.