In Victor Hugo's "Les Misérables," the onset of spring brings a sense of renewal and lightness to those who are burdened by sadness. The imagery of light streaming into dark cellars symbolizes hope emerging from despair. Spring, with its bright days, serves as a metaphor for the emotional uplift that can arise even in the most challenging circumstances.

Hugo suggests that the changing seasons can have a profound effect on the human spirit. As the darkness of winter gives way to the brightness of spring, individuals often experience a transformation, where their burdens feel lighter and their outlook more hopeful. This transition reflects the possibility of redemption and the beauty of life despite past struggles.