Valmiki Ramayana 5.56.15
निःश्वसन्तमिवामर्षाद्घोरैराशीविषोत्तमैः ।नीहारकृतगम्भीरैर्ध्यायन्तमिव गह्वरैः॥
niḥśvasantamivāmarṣādghorairāśīviṣottamaiḥ |nīhārakṛtagambhīrairdhyāyantamiva gahvaraiḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book