I think the concept is breaking through things that seem solid or certain, like breaking a rock open. It's about going beyond what's fixed or setup by the society and coloring outside the lines.
They kinda spoiled the lightstick from their last OT5 live last month, they were talking about the green&red unofficial lightstick and James kinda mentioned that their lightstick is kinda like that as well, simple, so that they can see people dancing and they could see coers clearly, likeee if they see it in the crowd, they are like "oh they're are our fans" awe