To train a dragon in the story "How to Train Your Dragon," the key steps shown in the film involve:
- Understanding and befriending a dragon rather than fighting it. The main character Hiccup captures a rare Night Fury dragon named Toothless but then chooses to free him instead of killing him, showing compassion.
- Creating tools to help the dragon. Hiccup builds a harness, saddle, and prosthetic tail fin for Toothless, enabling the dragon to fly again with Hiccup's guidance.
- Learning dragon behavior to gain their trust and work with them. Hiccup studies Toothless closely, which helps him tame other dragons and earn the respect of his Viking peers.
- Building a friendship that bridges the divide between Vikings and dragons, leading to peace between the two groups.
This approach, combining empathy, innovation, and trust, forms the essential theme of how to train and connect with dragons in the story.