I think maybe this song is about someone being controlled, and changed by their fears/worries.
I need assertion devils in my eye won't let up any motion - Needs someone to take control and help them overcome their 'devils', who won't stop emotions controlling what that person does.
I need a surgeon devils inside won't cut me any slack - Needs someone to get rid of the demon's inside, because they are destroying that person. Maybe its talking about a psychotherapist or something akin to that; then again it could be a metaphor for self-harm.
I think maybe this song is about someone being controlled, and changed by their fears/worries.
I need assertion devils in my eye won't let up any motion - Needs someone to take control and help them overcome their 'devils', who won't stop emotions controlling what that person does. I need a surgeon devils inside won't cut me any slack - Needs someone to get rid of the demon's inside, because they are destroying that person. Maybe its talking about a psychotherapist or something akin to that; then again it could be a metaphor for self-harm.