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अपानं गिरति उपसंहरति प्राणः ।प्राणं गिरति चन्द्रमाः मनः उपसंहरति ।मनसश्चन्द्रमा अधिदेवतम्; तस्माच्चन्द्रमःशब्देन मन उच्यते ।तं चन्द्रं मन आदित्यो बुद्धिः गिरते ।बुद्धेश्चादित्योऽधिदेवतम् ।तम् आदित्यं बुद्धिं गिरते परः परं ब्रह्म ।एतदुक्तं भवति—समाधिवेलायामपानं प्राणे उपसंहृत्य प्राणं मनसि मनश्च बुद्धौ बुद्धिं परमात्मन्युपसंहृत्य स्वाभाविकचित्सदानन्दाद्वितीयब्रह्मात्मनैवावतिष्ठत इत्यर्थः ॥
In plain words
The downward breath is absorbed into the upward breath. The moon-mind swallows the breath, for the moon is the presiding deity of the mind, and so the mind is called by the moon's name. Then the sun, which is the intellect, absorbs that mind; and the sun's presiding deity is the supreme, non-dual Brahman itself, which absorbs even the intellect. The meaning is this: during deep absorption, having gathered the breath into the life-force, the life-force into the mind, the mind into the intellect, and the intellect into the Supreme Self, one abides purely as the natural, non-dual reality of infinite consciousness and bliss.
Close to the Sanskrit
Apāna swallows and withdraws prāṇa. The moon swallows prāṇa and withdraws the mind. The moon is the presiding deity of the mind; therefore the mind is designated by the word moon. The sun, which is the intellect, swallows that moon-mind. And the sun is the presiding deity of the intellect. The supreme, transcendent Brahman swallows that sun-intellect. This is what has been said: during the time of samādhi, having withdrawn apāna into prāṇa, prāṇa into the mind, the mind into the intellect, and the intellect into the Supreme Self, one remains established solely as the natural, conscious, eternal-bliss, non-dual Brahman-Self—this is the meaning.