स एतेन प्रज्ञेनात्मनास्माल्लोकादुत्क्रम्यामुष्मिन्स्वर्गे लोके सर्वान् कामानाप्त्वाऽमृतः समभवत्समभवत् ॥ ४ ॥
In plain words
By this wise self, having risen up from this world, and having, in yonder heavenly world, obtained all desires, he became immortal -- became immortal.