What is agreeable to one constitutes his happiness. Likewise what is disagreeable to one forms his misery, feeling-"By this I shall acquire happiness and prevent misery”_-men perform all religious acts.
यथा च देहाच्च्यवते शरीरी पुनः शरीरं च यथाभ्युपैति। मनुरुवाच स्तदेव दुःखं प्रवदन्त्यनिष्टम्।