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The great elements, egoism, intellect, and also the Unmanifested Nature, the ten senses and one (mind), and the five objects of the senses.

The great elements, the sense of I, understanding (buddhi) and the unmanifest; the ten senses and the one, and the five fields of the senses;

Krishna begins describing what makes up the field, and the list continues into the next verse. He names elements familiar from the Sankhya analysis of nature: the five great elements of earth, water, fire, air and space; ahaṃkāra, the sense of I; buddhi, understanding; and the unmanifest, the undifferentiated source of all. Then come the ten senses, five of perception and five of action, the one mind that governs them, and the five kinds of sense object: sound, touch, form, taste and smell. All of these, even understanding and the sense of self, belong to the field, not to the knower.