It's Raiden reflecting on himself and humanity It also speaks about Raiden himself and his reminiscence of his old life and desire for that past to never have happened. This song is all about Raiden realising the patheticness of humanity and how susceptible we all are to influence, saying we're all just cogs is a perfect metaphor for humanity, we don't stop, we just keep going.
#Metal gear rising ost celldwleller free.