Final Fantasy interpretation:
"Machina" was the name for any kind of powered machine in Final Fantasy. They were forbidden because of their destructive nature.
So, in my opinion, it's just talking about the creation of one of those monster machines.
At the end, it's talking about how the machines went bad; speaking of their destructive nature (Override command confirmed.) But it's whoever's fault for creating them. The creation was "Your machine," therefore, your fault.
Non-Final Fantasy interpretation:
Being what everybody wants you to be and eventually breaking free of that mold.
Final Fantasy interpretation: "Machina" was the name for any kind of powered machine in Final Fantasy. They were forbidden because of their destructive nature.
So, in my opinion, it's just talking about the creation of one of those monster machines.
At the end, it's talking about how the machines went bad; speaking of their destructive nature (Override command confirmed.) But it's whoever's fault for creating them. The creation was "Your machine," therefore, your fault.
Non-Final Fantasy interpretation: Being what everybody wants you to be and eventually breaking free of that mold.