Darkness and night are associated with black, emptiness, and void. Another interesting point is its association with shadows. Some fascinating points of interest for me is darkness has hues or shades, which does have beauty itself. That is evident with observation and easily discovered with art and photography while may peak the interest as a power of shadows.
With science a fascinating point discovered, which some think controversial, is that a light bulb actually sucks darkness causing there to be light. That was researched by Bell Labs producing a recognized paper on that theory. That theory also says darkness weighs more than light.
Interestingly enough another point is that darkness is as fast as light. However there seems to be an exception discovered with shadows. That exception indicates with a shadow darkness may in fact move quicker than light. Following is a link to a YouTube video explaining that. Also, it expands on darkness related to ignorance being faster than knowledge. Great food for thought and may possibly be mind expanding. Of course with the new knowledge comes the thought one actually becomes more ignorant. hmmmm . . .
Even without knowledge of the points that I discover interesting for darkness and it as a property of shadows is how it has usage within history and literature. It has the power of both analogy and metaphor. It has strong implications within license of prose, poetry, and the lyrical expressions of music. Darkness has power both symbolically and descriptively. Fascinating assuredly is darkness, which can imbue consciousness, raise or diminish its dimension, and present contraction and expansion.
Pondering offers the possibility night as darkness or darkness as night being contradictory of day as light light as day until IMHO shadows are introduced, which again is quicker than light and dark themselves. One may ponder the the mystery, magic, and mysticism of dusk and dawn. Are those two the shadows of day as night encroaches or fades? How does that relate to the purity of night as darkness? Does that pondering of the consciousness cause awareness and spirituality? That itself may offer fascination and too, beauty.
Surely there are many more aspects of darkness, night, and those two becoming synergistic. Why only moments of pondering the provided image offers thought speculating direction and speed of darkness. Is it really more to less or less to more?