We know that the Matoran’s labour is what keep the Great Spirit Robot alive, and that if they stop, it ceases to function, but how does this work?
What I mean is that we saw a lot of jobs Matoran had in Metru Nui, but there’s none that seems to be about the Robot’s maitenance, but more like in real life, about providing essentials things, ressources and services, to your fellowman. Were other Matoran in Metru Nui doing things that really helped the GSR’s maintenance, but we just didn’t see them? If it’s the case, how was it covered, so they don’t know they were doing it for a giant robot? Or did Mata Nui just feed from the sheer energy the Matoran put in working?
Also, how do the Av-Matoran we see in the beginning of The Legend Reborn insert in that system? Those were clearly knowing what they were doing, and working for the functioning. What were these Matoran?