This meditation would focus the barbarians attunment to a creatures inner being(inner fire or lack of, spirit health ect) giving them a better sense of the enemies location, providing a slight bonus to attack accuracy, and a good bonus to perception and at higher levels more easily pierce the veil of invisibility type abilities. I could see this as a charisma and discipline contested ability.

This might sound magical, but to me meditations could border on being psychic abilities, which is non magical, since they are powers of the mind, we already have powers of the body(berserks) and spirit(dances).


http://www.legends-end.com/Tourney/LE-DR-FBC.htm