Bhagavad Gita 8.18अव्यक्ताद्व्यक्तयः सर्वाः प्रभवन्त्यहरागमे।रात्र्यागमे प्रलीयन्ते तत्रैवाव्यक्तसंज्ञके ॥

Teachers usually read this idea across several verses together, one shared reflection covers the whole unit.

• 8.14I am easily attainable by that ever-steadfast yogi who constantly and daily remembers me…
• 8.15Having attained Me, these great souls do not take birth again here—a place of pain and…
• 8.16All the worlds, including the world of Brahma, are subject to return again, O Arjuna; but…
• 8.17Those who know the day of Brahma, which lasts a thousand Yugas, and the night, which also…

• 8.18From the Unmanifested, all the manifested worlds proceed upon the arrival of the 'day';…

• 8.19This same multitude of beings, being born again and again, helplessly dissolves, O Arjuna,…
• 8.20But verily, there exists higher than this Unmanifested, another Unmanifested Eternal,…
• 8.21What is known as the Unmanifested and the Imperishable, That is said to be the highest…
• 8.22That highest Purusha, O Arjuna, is attainable by unswerving devotion to Him alone, within…

eva

certainly

tatra

into that

avyaktāt

from the unmanifested

sarvāḥ

all

prabhavanti

emanate

pralīyante

they dissolve

vyaktayaḥ

the manifested

ahaḥ-āgame

at the advent of Brahma’s day

rātri-āgame

at the fall of Brahma’s night

avyakta-sanjñake

in that which is called the unmanifest