स्वयैव व्यवहृत्याथ कदाचित्परिभूयते ।किंकरोस्म्यहमज्ञोऽस्मि दुःखितोऽस्मीति शोचति । ।मुदमेत्य कदाचिच्च स्वयमायाति दीनताम् ।प्रावृड्वर्षकलोल्लासपूरादिव नदीरयः
In plain words
'Then, sometimes, by his own dealings alone he is brought low, and he grieves: "I am a servant, I am ignorant, I am wretched." And sometimes, having come to joy, he falls of himself into wretchedness -- like a river's current after the swelling flood of the monsoon rains.'