The preliminary assertion presents a metaphorical depiction of a previous state, contrasting with a doubtlessly completely different current situation. The phrase evokes a time when the atmospheric surroundings, as perceived visually, lacked illumination and readability, resembling a heavy, obscuring masking. This might be interpreted actually, suggesting a interval of serious atmospheric opacity, or figuratively, representing a lack of understanding, understanding, or progress.
The importance of this preliminary situation lies in its stark distinction with the potential for subsequent adjustments. Understanding the circumstances that led to this “darkish blanket” permits for investigation into the processes which will have altered it. This will illuminate the evolution of atmospheric circumstances, the development of information, or the progress achieved in overcoming limitations. The historic context, whether or not literal or figurative, gives a baseline towards which to measure development and perceive the elements contributing to any subsequent transformation.