Adopting the high vow of taciturnity for a thousand years, he, O Rāma began to perform the most signal and arduous austerities.
मौनं वर्षसहस्रस्य कृत्वा व्रतमनुत्तमम्। चकाराप्रतिमं राम तपः परमदुष्करम्॥