The Supreme Personality of Godhead, Vasudeva, is one with the Supreme Brahman, the Supreme Absolute Truth. Everything is in Him in the beginning, and at the end all manifestations enter into Him

Expressions researched:
"The Supreme Personality of Godhead, Vāsudeva, is one with the Supreme Brahman, the Supreme Absolute Truth. Everything is in Him in the beginning, and at the end all manifestations enter into Him"

Srimad-Bhagavatam

SB Canto 9

As stated by the Lord Himself in Bhagavad-gītā (BG 7.19): "After many births and deaths, he who is actually in knowledge surrenders unto Me, knowing Me to be the cause of all causes and all that is. Such a great soul is very rare." The Supreme Personality of Godhead, Vāsudeva, is one with the Supreme Brahman, the Supreme Absolute Truth. Everything is in Him in the beginning, and at the end all manifestations enter into Him. He is situated in everyone's heart (sarvasya cāhaṁ hṛdi sanniviṣṭaḥ (BG 15.15)).

SB 9.18.49, Translation and Purport

The Supreme Lord, Vāsudeva, who created the cosmic manifestation, exhibits Himself as all-pervading, like the sky that holds clouds. And when the creation is annihilated, everything enters into the Supreme Lord, Viṣṇu, and varieties are no longer manifested.

As stated by the Lord Himself in Bhagavad-gītā (BG 7.19):

bahūnāṁ janmanām ante

jñānavān māṁ prapadyate

vāsudevaḥ sarvam iti

sa mahātmā sudurlabhaḥ

"After many births and deaths, he who is actually in knowledge surrenders unto Me, knowing Me to be the cause of all causes and all that is. Such a great soul is very rare." The Supreme Personality of Godhead, Vāsudeva, is one with the Supreme Brahman, the Supreme Absolute Truth. Everything is in Him in the beginning, and at the end all manifestations enter into Him. He is situated in everyone's heart (sarvasya cāhaṁ hṛdi sanniviṣṭaḥ (BG 15.15)). And from Him everything has emanated (janmādy asya yataḥ (SB 1.1.1)). All material manifestations, however, are temporary. The word svapna means "dreams," māyā means "illusion," and manoratha means "mental creations." Dreams, illusions and mental creations are temporary. Similarly, all material creation is temporary, but Vāsudeva, the Supreme Personality of Godhead, is the eternal Absolute Truth.