Nether World Neither World

I move between the dark and light a visitor; a guest at best Each holds a part, a piece of mind that keep me from the rest Forsaking dark, the gloomy state I want this, yet it has a hold that brings a comfort, even cold I feel I cannot pass that test The light that warms can also blind, that comfort comes with loss of sight seems crueler than blessed The nether world is neither then, not of darkness, nor of light it sits between those places where there's cool comfort and yet, sight