Verse 1.4.56

Sanskrit text, Unicode transliteration, Word-for-word and English translation of verse 1.4.56:

गन्धर्वादिभिर् आनन्दाद् गीयमानं रसायनम् ।
रामायणं च शृण्वन्तं कम्पाश्रु-पुलकाचितम् ॥ ५६ ॥

gandharvādibhir ānandād gīyamānaṃ rasāyanam |
rāmāyaṇaṃ ca śṛṇvantaṃ kampāśru-pulakācitam || 56 ||

Furthermore, blissfully seeing the Gandharvas and others glorify the nectar of Śrī Rāmāyaṇa, Śrī Hanumān also drank that sweet nectar through his ears while shedding tears of joy, with bodily trembling, hairs standing on end and so forth.

Commentary: Dig-darśinī-ṭīkā with Bhāvānuvāda

(By Śrīla Sanātana Gosvāmī himself including a deep purport of that commentary)

How was Śrī Hanumān worshipping Śrī Rāmacandrajī? This is especially being described in the next two verses beginning with gandharvādi. Śrī Rāmāyaṇa is the epic book of poetic stories of the pastimes of Bhagavān Śrī Rāmacandra. By hearing it, the divine body of Śrī Hanumān became immersed in bliss and decorated with trembling, tears and horripilation. Who was singing this story? The pastime stories of Rāmāyaṇa are sung by the resident gandharvas of Kimpuruṣa-varṣa. How were these stories of Rāmāyaṇa? They were the topmost rasāyana, the abode of mellows, that is, the abode of nine types of mellows such as śṛṅgāra-rasa. In other words, in the form of the supreme medicine of nourishing bhakti, it warded off the diseases that accompany the cycle of birth and death.