Valmiki Ramayana 2.114.7

सफेना सस्वना भूत्वा सागरस्य समुत्थिताम् ।प्रशान्तमारुतोद्घातां जलोर्मिमिव निस्वनाम्॥

saphenā sasvanā bhūtvā sāgarasya samutthitām |praśāntamārutodghātāṃ jalormimiva nisvanām ||

Our plain-language meaning of this verse is waiting for scholar review.