Upamana and Shabda

The third pramana, which is admitted by Nyaya and not by Vaisheshika, is upamana, and consists in associating a thing unknown before with its name by virtue of its similarity with some other known thing. Thus a man of the city who has never seen a wild ox (gavaya) goes to the forest, asks a forester – “what is gavaya?” and the forester replies – “oh, you do not know it, it is just like a cow”; after hearing this from the forester he travels on, and on seeing a gavaya and finding it to be similar to a cow he forms the opinion that this is a gavaya. This knowing an hitherto unknown thing by virtue of its similarity to a known thing is called upamana. Read more