Final answer:
The 'Call to Adventure' marks the beginning of the hero's journey, it's a crucial plot element that sets the story in motion and leads to character development as well as further plot progression.
Step-by-step explanation:
The beginning of the hero's journey is marked by the Call to Adventure. This is the moment when the protagonist is first given notice that everything is going to change, whether they know it or not. It's the point in a story where they are faced with a challenge, problem, or adventure to undertake. After this call, the hero can either willingly embrace the new adventure or may hesitate, leading to the eventual acceptance of the call. This initial stage plays a crucial role as it signifies the start of the story, engaging the readers and providing a catalyst for the events that follow. The different steps that make up the structure of the hero's journey, such as Rising action, Climax, and Crossing of the Threshold, further develop the plot and character development.