Jvara-Nidāna-Lakṣaṇa: Causes, Doṣic Types, Āma/Nirāma Stages, and Prognosis of Fever
अहोरात्रस्य सन्धौ स्यात्सकृदन्येद्युराश्रितः / तस्मिन्मांसवहा नाडी मेदोनाडी तृतीयके
ahorātrasya sandhau syātsakṛdanyedyurāśritaḥ / tasminmāṃsavahā nāḍī medonāḍī tṛtīyake
Tại chỗ giao nhau giữa ngày và đêm, hiện tượng ấy xảy ra một lần và liên hệ với ngày kế tiếp. Ngay nơi giao điểm ấy có mạch (nāḍī) mang thịt; và ở phần thứ ba có mạch mang mỡ.
Lord Vishnu (in dialogue with Garuda/Vinata-putra)
Concept: Knowledge of subtle bodily timing and channels (nāḍī) as a basis for understanding periodic disorders.
Vedantic Theme: Deha as kṣetra (field) to be known; discriminative observation (viveka) applied to embodied processes without mistaking them for the Self.
Application: Use sandhi-times as diagnostic anchors for periodic symptoms; track patterns across day-boundaries and correlate with tissue/‘dhātu’ involvement (māṃsa, medas).
Primary Rasa: shanta
Related Themes: Garuda Purana 1.147 (context: nāḍī/doṣa periodicity and tissue involvement)
This verse treats the day–night junction as a technically significant transition point, associating it with specific nāḍīs (subtle channels) and bodily-tissue functions, indicating that time-junctions are linked to inner physiological/subtle processes.
Indirectly: by describing nāḍīs and transitional ‘sandhi’ points, it supports the Garuda Purana’s broader framework that the jīva’s experiences after death depend on subtle-body structures and timings, not only the gross body.
Treat dawn/dusk transitions as disciplined moments—calm the senses, maintain purity of diet and conduct—since the text frames sandhi-times as influential for subtle physiological processes.