Although this series has all the appropriate conflicts and fantasy tropes, it is essentially about remembering the magic and power that belongs to us. Our dreams. Our desire to live as our true self. The entire Return to Erda series is more than just a return to the dimension that Hannah was born into and then taken away from. It's a return to herself. It's a remembering of what she was before and then integrating her time in Earth into her basic essence. Aren't we all returning to our own Erda? Remembering our past and incorporating it into becoming our future.