Shloka 10
Mind as Charioteer; Kṣetrajña, Tapas, and Dhyāna-Yoga
Adhyātma-Upadeśa
नित्यं द्वन्द्धसमायुक्तं सत्त्वमाहुर्मनीषिण: । निर्दचन्दो निष्कलो नित्य: क्षेत्रज्ञो निर्गुणात्मक:,मनीषी पुरुष सत्त्वको द्वन्धयुक्त कहते हैं और क्षेत्रज्ञ निर्दन्द्ध, निष्कल, नित्य और निर्मुणस्वरूप है
nityaṁ dvandva-samāyuktaṁ sattvam āhur manīṣiṇaḥ | nirdvandvo niṣkalo nityaḥ kṣetrajño nirguṇātmakaḥ ||
ヴァーユ神は言った。「賢者たちは、身を帯びた者のサットヴァ（生きる気質）は常に対立の二つ組—快と苦、得と失、称賛と非難—に絡め取られていると言う。だが場を知る者（kṣetrajña）、内なる証人は、そのような二相を離れる。分け目なく、常住し、グナ（guṇa）を超えた本性である。ゆえに、心に起こる対立の移ろう戯れを見極めつつ、影響されぬ不二の自己に安住するところに、倫理の確かさがある。」
वायुदेव उवाच
Educational Q&A
The verse distinguishes between the mind/embodied disposition that is continually caught in dualities (dvandvas) and the kṣetrajña—the inner witness—which is untouched by them, partless, eternal, and beyond the guṇas. Ethical steadiness comes from identifying with the witness rather than the fluctuating opposites.
Vāyu-deva is instructing the listener in a philosophical-ethical reflection: ordinary experience is marked by constant oscillation between opposites, but the true Self (kṣetrajña) remains unaffected. The teaching guides the hearer toward detachment and discernment.