In the classical Ayurveda treatise Charaka Samhita, definition of the word 'Ayu' is explicitly described. Acharya Charaka states that, Ayu is the time-span for which the continuity of consciousness persists. It means being alive, bonding with the body and its sustenance.<blockquote>वेदं चोपदिश्यायुर्वाच्यं; तत्रायुश्चेतनानुवृत्तिर्जीवितमनुबन्धो धारि चेत्येकोऽर्थः||२२|| (Char. Samh. Sutra. 30.22) </blockquote><blockquote>vēdaṁ cōpadiśyāyurvācyaṁ; tatrāyuścētanānuvr̥ttirjīvitamanubandhō dhāri cētyēkō'rthaḥ||22||</blockquote>Meaning: After answering question on Veda, Ayu is being described. Ayu means the anuvritti (continuity) of chetana (consciousness) i.e., chetananuvritti, being alive (jeevita), bonding with the body (anubandha) and sustenance of life (dhari). | In the classical Ayurveda treatise Charaka Samhita, definition of the word 'Ayu' is explicitly described. Acharya Charaka states that, Ayu is the time-span for which the continuity of consciousness persists. It means being alive, bonding with the body and its sustenance.<blockquote>वेदं चोपदिश्यायुर्वाच्यं; तत्रायुश्चेतनानुवृत्तिर्जीवितमनुबन्धो धारि चेत्येकोऽर्थः||२२|| (Char. Samh. Sutra. 30.22) </blockquote><blockquote>vēdaṁ cōpadiśyāyurvācyaṁ; tatrāyuścētanānuvr̥ttirjīvitamanubandhō dhāri cētyēkō'rthaḥ||22||</blockquote>Meaning: After answering question on Veda, Ayu is being described. Ayu means the anuvritti (continuity) of chetana (consciousness) i.e., chetananuvritti, being alive (jeevita), bonding with the body (anubandha) and sustenance of life (dhari). |