अपा का गतिरित्यसौ लोक इति होवाचामुष्य लोकस्य का गतिरिति न स्वर्गलोकमति नयेदिति होवाच स्वर्ग वय लो-क ँ सामाभिसंस्थापयाम स्वर्गं स ँस्ताव ँहि सामेति ॥ ५ ॥
In plain words
What is the destination of water? That other world, he said. And what is the destination of that world? He should not lead the seeker beyond the heavenly world, he said. We firmly conclude our Sāman chant in the heavenly world itself, for the Sāman chant is indeed the praise that culminates there.
Close to the Sanskrit
What is the destination of water? That world, thus he spoke. What is the destination of that world? He should not lead beyond the heavenly world, thus he spoke. We establish the Sāman chant precisely in the heavenly world; for the Sāman chant is indeed collective praise directed to heaven.