3 ideas
The book treats the breakdown as a changed mode of seeing. Ordinary categories dissolve, and the unseen presses into the visible. The cost is severe: isolation, terror and the loss of shared reality. Read this way, the question shifts from 'what went wrong with the mind' to 'what does the mind see when its usual filters fail, and what does that reveal about what the filters were hiding.'
The blue light names a liminal zone: the glow at the edge where the self starts to come apart. It sits between sanity and madness, the material and the spiritual, presence and absence. Colour here is a map of inner states. Blue marks passage rather than a fixed condition, the moment of seeing through things just before, or just after, losing hold of them.
Displacement strips away the social scaffolding that holds an identity in place: language, land, family and political role. The self is left exposed to questions it could otherwise avoid. That exposure makes the exile both more vulnerable to disintegration and more open to encounters, mystical or human, that would never happen at home. Being unmoored is presented as the precondition for both the breakdown and the illumination.