Chandogya Upanishad Verse 5.1.15
Sanskrit Verse
न वै वाचो न चक्षूंषि न श्रोत्राणि न मनांसीत्याचक्षते प्राण इति एवाचक्षते प्राणो ह्येवैतानि सर्वाणि भवति ॥
Transliteration
na vai vāco na cakṣūṃṣi na śrotrāṇi na manāṃsītyācakṣate prāṇa iti evācakṣate prāṇo hyevaitāni sarvāṇi bhavati ||
Translation
“Verily, they do not call them Speeches, or Eyes, or Ears, or Minds. They call them Pranas (life-forces), for the Prana is all these.”

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