In the classic Chinese novel "Journey to the West," the White Dragon Horse plays an important role as one of the companions of the monk Tang Sanzang on his quest to retrieve Buddhist scriptures from India. Although he may not be as prominent as Sun Wukong or Zhu Bajie, his contributions and transformations throughout the journey make him a memorable character.

Originally, the White Dragon Horse was the third prince of the Eastern Sea Dragon King. Known for his rebellious nature, he defied his father's wishes by setting fire to a pearl bestowed upon him by the Jade Emperor. As punishment, he was transformed into a horse to serve as a mount for Tang Sanzang. This transformation was meant to teach him humility and patience, virtues that would prove invaluable during the long and perilous journey ahead.

Throughout the story, the White Dragon Horse exhibits unwavering loyalty to Tang Sanzang. Despite the challenges they face, including battles with demons and navigating treacherous landscapes, he remains steadfast in his duty. His strength and endurance allow him to carry Tang Sanzang across vast distances, making him an essential part of the team.

Interestingly, the White Dragon Horse also undergoes a symbolic transformation. At the end of their journey, he is restored to his true form as a dragon and ascends to heaven, symbolizing his growth and redemption. This resolution highlights the novel’s themes of personal development and the importance of perseverance in overcoming obstacles.

In essence, the White Dragon Horse embodies qualities such as dedication, resilience, and transformation, making him a vital and inspiring figure in "Journey to the West." His story serves as a reminder of the power of change and the rewards of staying true to one's path.