KENA UPANISHAD · 3/10

तस्मै तृणं निदधावेतदादत्स्वेति तदुपप्रेयाय सर्वजवेन तन्न शशाकादातुं
स तत एव निववृते नैतदशकं विज्ञातुं यदेतद्यक्षमिति ॥

tasmai tṛṇaṃ nidadhāvetadādatsveti tadupapreyāya sarvajavena tanna śaśākādātuṃ
sa tata eva nivavṛte naitadaśakaṃ vijñātuṃ yadetadyakṣamiti ॥

That set before him a blade of grass, 'This take.' He went towards it with all his speed and he could not take it. Even there he ceased, even thence he returned: 'I could not discern of That, what is this mighty Daemon.'