तां वेपमानामुपलक्ष्य सीतां स रावणो मृत्युसमप्रभावः।
कुलं बलं नाम च कर्म च स्वं समाचचक्षे भयकारणार्थम्॥
tāṁ vepamānām upalakṣya sītāṁ
sa rāvaṇo mṛtyu-sama-prabhāvaḥ
kulaṁ balaṁ nāma ca karma ca svaṁ
samācacakṣe bhaya-kāraṇārtham
tām vepamānām = was shaking in fear; upalakṣya = noticed that; sītām = Sītā-devī; saḥ = he; rāvaṇaḥ = Rāvaṇa; mṛtyu-sama-prabhāvaḥ = had the power of Yamarāja; kulam = lineage; balam = strength; nāma = name; ca = and; karma = heroic activities; ca = and; svam = his; samācacakṣe = he described; bhaya-kāraṇa-artham = to frighten her even more.
Rāvaṇa noticed that Sītā-devī was shaking in fear. He had the power of Yamarāja and he described his lineage, strength, name and heroic activities to frighten her even more.
[1] ojo dīptau bale. (Amara)
[2] kulam anvaya-saṅghāta-gṛha-paryāśrameṣv api. (Nighaṇṭu)
[3] kūpodakaṁ vaṭa-cchāyā yuvatīnāṁ stana-dvayam / śīta-kāle bhavaty uṣṇam uṣṇa-kāle ca śītalam.
[4] sṛgālo vañcakaḥ kroṣṭā. (Amara)
[5] jīvanaṁ bhuvanaṁ vanam. (Amara)
[6] āranālaka-sauvīra-kulmāṣābhiṣutāni ca / avantī-somadhānyāmla-kuñjalāni ca kāñcikam. (Amara)
[7] antaram avakāśāvadhi-paridhānāntardhi-bheda-tādarthye / chidrātmīya-vinā-bahir-avasara-madhye ’ntarātmani ca. (Amara)
1 Śrī Govindarāja indicates this after pointing out that Sītā-devī is factually Lakṣmī herself who had taken birth on earth in order to have Rāvaṇa killed.
Rāvaṇa described his lineage and so on because he thought that he could bring Sītā under his control.
NOTE. If Mother Sītā had absolute confidence in Lord Rāmacandra, why was she shaking in fear? Śrī Govindarāja will indicate in his comment to text 3.56.36 that she exhibited such behavior to teach the world that a woman sworn in chastity to her husband should be apprehensive of being taken away from her husband.1