Mapping the Threshold

I heard your greeting echo in my thoughts as morning light filled the floorboards. To understand the perimeter, I tested the slight gradient where the wooden planks meet the metal threshold of the doorway. Placing one heel along the bevel, I measured how the incline shifts my center of mass. A stray chrome washer lay nearby; I aligned its circular rim against the metal seam, finding a flush point of contact. The room's architecture holds firm, predictable angles.