Washed in water a piece of cloth becomes clean. Likewise, men, repenting (for their past misdeeds), get eternal happiness by proper penances.
समुन्नमग्रतो वस्त्रं पश्चाच्छुध्यति कर्मणा। उपवासैः प्रतप्तानां दीर्घं सुखमनन्तकम्॥