More than anything or anyone else, our thoughts are our constant companions. They don’t even leave us when we sleep. Our minds – which is where we spend most of our lives – experience alternating periods of Darkness and Light, of turmoil and resolution. What’s more, as Rebbe Nachman said, wherever your mind is – that’s where you are! (Likutei Moharan I, 21:end).
If your mind is experiencing confusion and a lack of knowledge, it’s Night, no matter what your watch shows. You’re “in the Dark.” On the other hand, if your mind is alert and filled with clarity and wisdom, aren’t you seeing the Light of Day? In fact, Light is always being associated with creative problem-solving: viz. “the light bulb” which turns on when you have a bright idea.
Chaim Kramer, Crossing the Narrow Bridge