The symbols look kind of like logographs to me (of this mysterious Atlantean language). Like they each represent a word. Some languages use that, like Chinese. The top one would obviously be "fire" or "flame" since it looks like the flame of a candle. The other two are more tricky, the second one looks like it might be two heads of animals joined together (their faces are at the bottom, upside down) , the third looks like it might represent a human body. If I were to take a wild guess at what it might say, I'd say "fire unites mankind". It's a candle holder.