Śrīmad-Bhāgavatam · Text 7.15.54
Who is speaking and story frame
अग्नि: सूर्यो दिवा प्राह्ण: शुक्लो राकोत्तरं स्वराट् ।
विश्वोऽथ तैजस: प्राज्ञस्तुर्य आत्मा समन्वयात् ॥ ५४ ॥
agniḥ sūryo divā prāhṇaḥ
śuklo rākottaraṁ sva-rāṭ
viśvo ’tha taijasaḥ prājñas
turya ātmā samanvayāt
On his path of ascent, the progressive living entity enters the different worlds of fire, the sun, the day, the end of the day, the bright fortnight, the full moon, and the passing of the sun in the north, along with their presiding demigods. When he enters Brahmaloka, he enjoys life for many millions of years, and finally his material designation comes to an end. He then comes to a subtle designation, from which he attains the causal designation, witnessing all previous states. Upon the annihilation of this causal state, he attains his pure state, in which he identifies with the Supersoul. In this way the living entity becomes transcendental.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.