स वा एष एतस्मिन् स्वप्नान्ते रत्वा चरित्वा दृष्ट्वैव पुण्यं च पापं च पुनः प्रतिन्यायं प्रतियोन्याद्रवति बुद्धान्तायैव ॥४,३.३४ ॥
In plain words
"Having taken his pleasure and moved about in that state of dream, and having seen good and evil, he hastens back again by the way he came to his place, to waking.
The commentators
Bṛhadāraṇyakopaniṣadbhāṣyam· bhāṣya
न्यायं प्रतियोन्याद्रवति बुद्धान्तायैव ॥
In plain words
...by that same route, it rushes straight back to waking -- nowhere else.
Close to the Sanskrit
...by the same rule, [the Self] hastens back through the same channel [it came from], straight to the state of waking.