ऊर्ध्वं प्राणा ह्युत्क्रमन्ति यूनः स्थविर आयति । प्रत्युत्थानाभिवादाभ्यां पुनस्तान् प्रतिपद्यते ॥ १२० ॥
For the vital airs of a young man mount upwards to leave his body when an elder approaches; but by rising to meet him and saluting he recovers them.
english translation