यह क्षेत्र और क्षेत्रज्ञका तत्त्व ऋषियोंद्वाराः बहुत प्रकारसे कहा गया है और विविध वेदमन्त्रोंद्रारा भी विभागपूर्वक कहा गया है तथा भलीभाँति निश्चय किये हुए युक्तियुक्त ब्रह्मसूत्रके पदोंद्वारा भी कहा गया है ।। महाभूतान्यहंकारो: बुद्धिरव्यक्तमेव च । इन्द्रियाणिद शैकं च पञ्च चेन्द्रियगोचरा:,५ पाँच महाभूत, अहंकार-॑, बुद्धि३ और मूल प्रकृति+ भी; तथा दस इन्द्रियाँ-, एक मनः और पाँच इन्द्रियोंक विषय* अर्थात् शब्द, स्पर्श, रूप, रस और गन्ध--
arjuna uvāca | mahābhūtāny ahaṅkāro buddhir avyaktam eva ca | indriyāṇi daśaikaṁ ca pañca cendriyagocarāḥ ||
Arjuna said: “The constituents of embodied existence are to be understood as follows: the five great elements; ego-sense (ahaṃkāra); intellect (buddhi); and the unmanifest source (avyakta, primordial nature). Along with these are the ten senses, the one mind (manas), and the five fields of sense-experience—sound, touch, form, taste, and smell.”
अजुन उवाच
The verse enumerates the components of the ‘field’ of experience—elements, ego, intellect, unmanifest nature, senses, mind, and sense-objects—so that one can ethically and spiritually discriminate the changing instruments of experience from the true knower (kṣetrajña).
Arjuna is articulating a structured philosophical analysis of embodied existence, listing the basic categories that constitute the experienced world and the inner apparatus of cognition, as part of a broader inquiry into kṣetra (the field) and kṣetrajña (the knower).