Śrīmad-Bhāgavatam · Text 7.3.33
Who is speaking and story frame
व्यक्तं विभो स्थूलमिदं शरीरं
येनेन्द्रियप्राणमनोगुणांस्त्वम् ।
भुङ्क्षे स्थितो धामनि पारमेष्ठ्ये
अव्यक्त आत्मा पुरुष: पुराण: ॥ ३३ ॥
vyaktaṁ vibho sthūlam idaṁ śarīraṁ
yenendriya-prāṇa-mano-guṇāṁs tvam
bhuṅkṣe sthito dhāmani pārameṣṭhye
avyakta ātmā puruṣaḥ purāṇaḥ
O my lord, being changelessly situated in your own abode, you expand your universal form within this cosmic manifestation, thus appearing to taste the material world. You are Brahman, the Supersoul, the oldest, the Personality of Godhead.
Read Śrīla Prabhupāda's purport on Vedabase.io