Valmiki Ramayana 7.9.4

गच्छन्तं पितरं द्रष्टुं पुलस्त्यतनयं विभुम् ।तं दृष्ट्वा ऽमरसङ्काशं स्वच्छन्दं तपनोपमम्॥

gacchantaṃ pitaraṃ draṣṭuṃ pulastyatanayaṃ vibhum |taṃ dṛṣṭvā 'marasaṅkāśaṃ svacchandaṃ tapanopamam ||

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