I highly recommend you check out this theory by Bionicle Guru. It makes sense, and indirectly implies that the grand scheme of things in the Bionicle universe is colossal (much more than I had thought).

This is why I love Bionicle. It makes me think more than any other form of media I've ever come into contact with. The mysteries baffle and confuse me, but that just makes me more determined to solve them. This is like, "Da Vinci Code" level as far as schemes/plans/mysteries go.

And these Bohrok are getting more and more intriguing. The 2002 storyline was one of my least favorites, and now it's escalated into one of my all-time favorites. I would've never thought that a swarm of literally emotionless machines could cause so much speculation.

In general, Bionicle really has made me a much smarter person. Thanks, LEGO!