The "deep piece" of being locked in your own darkness is the realization that you are the only one who knows the layout of the room. You are both the prisoner and the one who holds the blueprint.
When you are locked in long enough, it becomes hard to distinguish between your fears and the facts of your life.
The weight of your words suggests a moment of profound introspection. In a literal sense, Locked in My Darkness refers to a chilling psychological horror series by Blusagi Team, but your request for a "deep piece" calls for something that speaks to the internal experience of that same shadow.
In the dark, small thoughts become giants.