For a bear, there are alot of meanings depending on what bear it is.
IF the bear was friendly it means support and consoling. Bear is a symbol of overly protection, spiritual power and strength.
IF it was unfriendly you could be threatened from powerful sources.
Dreams cannot be interpretated easily with so few information, please give us more details or go to http://dreamsabout.net/bear.html to figure it out yourself :)