What did the anime Howl's Moving Castle mainly express?

Howl's Moving Castle was an animated film adapted from Ewen Anders 'novel of the same name. It mainly told the story of the heroine, Howl, who was played by Sophie Marceau, who had the ability to travel in time. Howl's adventure story was to find true love and save the people she loved. The anime mainly explored the theme of love, fate, choice and freedom. The love line between Howl and Sophie ran through the whole story. They had experienced many difficulties and challenges, but they had always supported each other and faced the trials of fate together. Their love not only reflected the unwavering love, but also the courage and wisdom that humans showed in the face of difficulties. The anime also emphasized the importance of choice. Howl and Sophie had experienced different lives in different time and space, but they finally realized the power of choice. Through their own choices and actions, they changed the trajectory of their lives and became better people. Howl's Moving Castle mainly expressed the theme of love, fate, choice and freedom, as well as the importance of choice and action. It was an animated work full of emotion and deep thinking.