The naiyayikas admitted only the five cognitive senses which they believed to be composed of one or other of the five elements. These senses could each come in contact with the special characteristic of that element of which they were composed. Thus the ear could perceive sound, because sound was the attribute of akasha, of which the auditory sense, the ear, was made up. The eye could send forth rays to receive the colour, etc., of things. Thus the cognitive senses can only manifest their specific objects by going over to them and thereby coming in contact with them. The cognitive senses (vak, pani, pada, payu, and upastha) recognized in Samkhya as separate senses are not recognized here as such for the functions of these so-called senses are discharged by the general motor functions of the body. Read more »
akasha, auditory sense, cognition, cognitive, concrete experience, five elements, motor functions, perception, perceptual process, right knowledge, senses, vak