The 暗い profile of a mysterious 土地, a 黒 or 白地平線, perhaps where the ancestors of coal 歩く. The 空 is 暗い with the residue of the burned 地面. The 地面 is made of ほこり that has fallen from the 空 and been packed, by the pacing of invisible souls, into a hard coal 石. Trapped dogs and dinosaurs bark from air-filled hollows under the 地平線, as the invisible 物質/実質 painfully penetrates them, replacing their bones with blackened 石. Think of this as a 夜 view of La Brea Tarpits, pictures still being snapped by an automatic カメラ pointing facedown towards the 地面, left there by an owner sucked into the oil a million years ago yesterday.