विजातीयप्रत्ययान्तराव्यवहितमेकचिन्तनं ध्यानम् ।
vijātīya-pratyayāntarāvyavahitam eka-cintanaṁ dhyānam |
(Govinda-bhāṣya and Śrī-bhāṣya on Vedānta-sūtra: 4.1.7)
“Meditation (dhyāna) means thought of one [i.e., one subject] uninterrupted by other, dissimilar cognitions.”