Madhu–Kaiṭabha, Nārāyaṇa’s Yoga-Nidrā, Rudra’s Manifestation, and the Aṣṭamūrti–Trimūrti Teaching
तस्यैवं तप्यमानस्य न किञ्चित् समवर्तत / ततो दीर्घेण कालेन दुः खात् क्रोधो ऽभ्यजायत
tasyaivaṃ tapyamānasya na kiñcit samavartata / tato dīrgheṇa kālena duḥ khāt krodho 'bhyajāyata
Demikianlah dia terus bertapa, namun tiada apa-apa yang berhasil. Setelah lama berlalu, daripada penderitaan, bangkitlah kemarahan di dalam dirinya.
Narrator (Purāṇic narrator in the Indradyumna episode; traditionally Sūta relaying the account to sages)
Primary Rasa: karuna
Secondary Rasa: raudra
Indirectly, it shows that external austerity alone does not guarantee inner realization; when the mind remains afflicted (here, by sorrow turning into anger), the recognition of the Self is obstructed—implying that Atman-realization requires inner purification and steadiness.
The verse highlights tapas as a discipline, but also warns that without mastery over mental states (krodha arising from duḥkha), tapas becomes fruitless; this aligns with Yogic and Pāśupata-oriented emphasis on conquering inner enemies (kāma, krodha, etc.) alongside ascetic practice.
It does not name Śiva or Viṣṇu directly; its takeaway is ethical-yogic: both Shaiva and Vaishnava strands in the Kūrma Purāṇa stress inner restraint and purification as prerequisites for divine grace and spiritual success.