In mythology, thresholds often represent significant transitions and transformative moments in a character's journey. Crossing a threshold symbolizes leaving behind the known and entering the unknown, marking a point of personal growth or revelation. For instance, in the hero's journey, the crossing of the threshold is where the hero steps into adventure, encountering challenges that test their abilities. This motif underscores the importance of change, illustrating that crossing into new realms often leads to profound insights and personal evolution.