Katha Upanishad Verse 2.1.6

Yama identifies the “First-born” of Brahman (Hiranyagarbha) as the one who exists within the elements and resides in the cave of the heart.

Sanskrit Verse

यः पूर्वं तपसो जातमद्भ्यः पूर्वमजायत । गुहां प्रविश्य तिष्ठन्तं यो भूतेभिर्व्यपश्यत । एतद्वै तत् ॥ ६ ॥

Transliteration

yaḥ pūrvaṃ tapaso jātamadbhyaḥ pūrvamajāyata | guhāṃ praviśya tiṣṭhantaṃ yo bhูtebirvyapaśyata | etadvai tat || 6 ||

Translation

He who sees Him seated in the five elements, born of Tapas (fire of Brahman), born before water; who, having entered the cave of the heart, abides therein —this verily is That.

---

Cross-references:

• Dhammapada Verse 3.5 (Heart-Cave / Guhaśayam)