Shloka 38
Brahmopadeśa: Adhipatitva-kathana, Dharma-lakṣaṇa, and Kṣetra–Kṣetrajña Viveka
Book 14, Chapter 43
पुरुषस्तद् विजानीते तस्मात् क्षेत्रज्ञ उच्यते । गुणवृत्तं तथा वृत्तं क्षेत्रज्ञ: परिपश्यति
puruṣas tad vijānīte tasmāt kṣetrajña ucyate | guṇa-vṛttaṃ tathā vṛttaṃ kṣetrajñaḥ paripaśyati |
风神伐由说道：“内在之人（puruṣa）知晓那经验之田，因此称为‘知田者’（kṣetrajña）。知田者清明观照诸质（guṇa）的运作及其种种活动。然而诸质虽在变易之域反复生起，却并不能真正认识真我。”
वायुदेव उवाच
Educational Q&A
Consciousness (the Puruṣa/Ātman) is the ‘Knower of the Field’ because it illumines and understands the changing operations of prakṛti (the guṇas). The guṇas can be observed and analyzed by the Self, but they cannot, by themselves, grasp the Self—highlighting the Self’s distinctness and transcendence over material nature.
Vāyu is instructing the listener in a philosophical discourse: he defines why the Self is termed kṣetrajña and contrasts the knowing principle (Ātman/Puruṣa) with the known, changing processes (guṇas and their activities), emphasizing discernment and inner detachment.