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
Sa pagsasanib ng araw at gabi, ito’y nagaganap nang minsan at kaugnay ng kasunod na araw. Sa pagsasanib na iyon ay may nāḍī na nagdadala ng laman; at sa ikatlong bahagi ay may nāḍī na nagdadala ng taba.
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.