Technically, "raw water" is unfiltered, untreated, unsterilized water from a natural spring. Are there really benefits to drinking water in a "natural" state? A small, but growing group of advocates believe there are. "Living water" as it is called by some, is organically laden with minerals, bacteria, and other "healthy" compounds claimed to boost "energy" and "peacefulness"--all unproven benefits. Strong evidence suggests there is no need to fear the harmless ingredients such as disinfectants and fluoride in most tap water.
PositiveTip: Until more evidence is available, stick with drinking tap water, unless you know it is contaminated, then boil or filter it.