Raw Honey is a natural, unprocessed food that is as close to the hive you can get without facing a swarm of bees. Basically, raw honey has not been overly filter and is never pasteurized. Unlike refined sugar - raw honey retains a nutritional value beneficial to your health.
Over-heating (also known as pasteurizing) and over filtering honey removes the natural occurring enzymes, vitamins & antioxidants that are good for you. Pasteurizing and adding corn syrup to honey is common among commerical producers trying to prevent the natural (and completely harmless) process of crystalization honey will undergo sitting on a shelf over time.