Yoga Sūtra Chapter One verse 9
शब्दज्ञानानुपाती वस्तुशून्योविकल्पः ॥९॥
śabda-jñāna-anupātī vastu-śūnyaḥ vikalpaḥ ||9||
Imagination is knowledge following words empty of substance.
śabda - words, sound, languagejñāna - knowing; knowledge; higher knowledgeanupātin - followingvastu - any really existing or abiding substance or essence, thing, objectśūnya - emptyvikalpa - false notion, fancy, imaginationCommentaries and Reflections
Commentary by Paul Harvey:
Imagination is knowledge that comes from words empty of substance.