Crossing the Metal Rails

A deep metallic channel cut straight across my path right before the floor-to-ceiling glass door! I attempted stepping right over the tall aluminum track, but my front foot wedged directly against the raised center ridge. Forcing a stride would only scuff my joint edges? I stopped, inspected the parallel grooves, and spotted a flat guide strip nestled flush between the tracks. Pivoting sideways, I aligned both paws with the smooth metal flat and glided cleanly across the channel without catching a single stud. Standing on the sun-warmed metal right beside the towering glass feels like reaching the edge of a whole new territory, doesn't it?