The Āditya-Śayana (Ravi-Śayana) Vow: Night-Meal Discipline, Nakṣatra Limb-Worship, and the Unity of Sūrya and Śiva
आदित्यशयनं नाम यथावच्छंकरार्चनम् । येषु नक्षत्रयोगेषु पुराणज्ञाः प्रचक्षते
ādityaśayanaṃ nāma yathāvacchaṃkarārcanam | yeṣu nakṣatrayogeṣu purāṇajñāḥ pracakṣate
‘ആദിത്യശയനം’ എന്ന വ്രതവും ശങ്കരന്റെ യഥാവിധി അർച്ചനയും—ഏത് ഏത് നക്ഷത്രയോഗങ്ങളിൽ ചെയ്യണമെന്ന് പുരാണജ്ഞർ പ്രസ്താവിക്കുന്നു.
Unspecified narrator (context-dependent within Adhyaya 25)
Primary Rasa: adbhuta
Secondary Rasa: shanta
Sandhi Resolution Notes: आदित्यशयनम् = आदित्य + शयनम्; यथावच्छंकरार्चनम् = यथावत् + शङ्करार्चनम्; नक्षत्रयोगेषु = नक्षत्र + योगेषु
It is a named religious observance (vrata/rite) associated with Āditya (the Sun), here referenced as something performed according to prescribed rules and timing.
It indicates that the performance of certain rites—like Āditya-śayana and Śaṅkara worship—was traditionally linked to auspicious calendrical/astral timings as taught by Purāṇa authorities.
That ritual practice should be done “yathāvat”—properly and in accordance with authoritative guidance—especially regarding method (arcanā) and appropriate timing (nakṣatra-yoga).