Chapter 8 · The Imperishable Absolute · Krishna said
Bhagavad Gita 8.4 — The three realms explained
अधिभूतं क्षरो भावः पुरुषश्चाधिदैवतम्। अधियज्ञोऽहमेवात्र देहे देहभृतां वर ॥
adhibhūtaṃ kṣaro bhāvaḥ puruṣaścādhidaivatam | adhiyajño'hamevātra dehe dehabhṛtāṃ vara ||
Meaning
The perishable world is adhibhuta; the cosmic Person is adhidaiva; and I myself, dwelling in this body, am adhiyajna, best of the embodied.