ब्रह्मणः सोम्य ते पादं ब्रवाणीति ब्रवीतु मे भगवानिति तस्मै होवाच प्राणः कला चक्षुः कला श्रोत्रं कला मनः कलैष वै सोम्य चतुष्कलः पादो ब्रह्मण आयतनवान्नाम ॥ ४.८.३ ॥
In plain words
"Let me tell thee a foot of Brahman, my dear." "Tell me, sir." It said to him, "The breath is a portion, the eye is a portion, the ear is a portion, the mind is a portion. This, my dear, is the four-portioned foot of Brahman, whose name is the Abiding-place.
The commentators
Chāndogyopaniṣadbhāṣyam· Leaf 7.41· bhāṣya
ब्रह्मणः सोम्य ते पादं ब्रवाणीति ब्र-वीतु मे भगवानिति तस्मै होवाच प्राणः कला चक्षुः कला श्रोत्रं कला मनः कलैष
In plain words
Gentle one, shall I teach you a quarter of Brahman? Let the revered master teach me. To him prana spoke: Prana is a part, the eye is a part, the ear is a part, the mind is a part...
Close to the Sanskrit
Shall I speak to you a quarter of Brahman, gentle one? Let the revered one speak to me, thus. To him said prana: Prana is a part, the eye is a part, the ear is a part, the mind is a part, this...
Chāndogyopaniṣadbhāṣyam· Leaf 7.42· bhāṣya
स च मद्गुः प्राणः स्वविषयमेव च दर्शनमुवाच प्राणः कलेत्याद्यायतनवानित्येवं नाम । आयतनं नाम मनः सर्व- करणोपहृतानां भोगानां तद्यस्मिन्पादे विद्यत इत्यायतनवा- न्नाम पादः ॥
In plain words
That same prana, like a diver bird, declared perception itself to be its proper sphere. Prana is a part, named as possessing a foundation. This foundation is the mind—the gathering place for all experiences brought by the senses. That in which this quarter is found is therefore called the quarter possessing an abode.
Close to the Sanskrit
And that diver bird prana spoke of perception itself as its own object, prana is a part, thus named possessing an abode. Abode by name is the mind, of all enjoyments brought by all senses, that in which foot is found, is named the quarter possessing an abode.