Valmiki Ramayana 6.66.2
स ननाद महानादं समुद्रमभिनादयन्।जनयन्निव निर्घातान् विधमन्निव पर्वतान्॥
sa nanāda mahānādaṃ samudramabhinādayan |janayanniva nirghātān vidhamanniva parvatān ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book