Valmiki Ramayana Yuddha Kanda Sarga 121 Shloka 16
Original Shlokaइमामपिविशालाक्षींरक्षितांस्वेनतेजसा । रावणोनातिवर्तेतवेलामिवमहोदधिः ।।6.121.16।।
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स्वेनतेजसा selfeffulgent, रक्षिताम् can protect herself, इमाम् her, विशालाक्षीम् broadeyed, महोदधिः great ocean, वेलामिव bounds, रावणः Ravana, नातिवर्तेत not violate
"Naturally she is selfeffulgent and can protect herself. Will Ravana be able to violate broad eyed Janakijust as the great ocean can't cross the bounds."