my light just went out

at a time there was a perfect balance, light and dark. but after a time the light got brighter and brighter.... almost overpowering. darkness hated the idea of the light being a larger part, so darkness grew, and clouded the light. the light was dimmed for a while, but never went out. eventually the light slowly started to get brighter again - almost tangible. the balance was almost reset, but then something happened. and the light left the darkness to take over. now there is nothing but cold, black darkness consuming every corner of my being.