Create a symbolic image illustrating humanity's journey through its struggles, highlighting the quest for unity. At the center, a serpent-shaped timeline winding through time, featuring scenes of historical conflicts that gradually transform into moments of collaboration and peace. Each segment of the timeline represents an era, with characters from different cultures uniting their strengths to overcome obstacles. In the background, landscapes shift from desolation to blossoming, symbolizing the evolution toward a shared future. Elements of light intertwine throughout the image, representing hope and the potential for transformation. The image should be rich in color, evoking emotion and depth, reminiscent of symbolic or surreal art styles, with intricate details.