Hmmm it becomes a bit clear why you always write in the dark evening / night hours. The darkness that surrounds you, the silence around you, your body tired from the day and ready to surrender to the thoughts of your mind that is still awake. Ready to take in and feel every vibe of your vibrant creative brain. No distractions from everyday sounds to get you out of your writing flow, creative juices that flow freely ... Do I need to go on?