व्याधि-गुण-साम्योपदेशः | Discourse on Affliction, Guṇa-Equilibrium, and the Inner Battle
शीतोष्णे चैव वायुश्व॒ गुणा राजन् शरीरजा: । तेषां गुणानां साम्यं चेत् तदाहु: स्वस्थलक्षणम्
śītoṣṇe caiva vāyuś ca guṇā rājan śarīrajāḥ | teṣāṃ guṇānāṃ sāmyaṃ cet tad āhuḥ svasthalakṣaṇam ||
ພະວາຍຸເທວະກ່າວວ່າ: «ໂອ ພະຣາຊາ, ຄວາມໜາວ, ຄວາມຮ້ອນ, ແລະ ລົມ—ທັງສາມນີ້ແມ່ນຄຸນລັກຂອງຮ່າງກາຍ. ເມື່ອຄຸນທັງສາມຢູ່ໃນດຸນຍະພາບ ດຸນຍະພາບນັ້ນຖືກກ່າວວ່າເປັນເຄື່ອງໝາຍຂອງຜູ້ມີສຸຂະພາບດີ».
वायुदेव उवाच
Health is defined as equilibrium: when the bodily qualities of cold, heat, and wind (vāyu) are balanced, one is considered svastha—sound and well-established.
Vāyu-deva addresses a king and gives a concise, instructive definition of bodily well-being, framing health as the harmonious balance of key physiological qualities.