Read the following Burmese folktale.

Thi Hah and the Princess
Thi Hah was a poor boy with no family. Whenever he was sad, he played the harp, and the sweet sound of the instrument's strings made him happy.
A magician whose son played the harp heard Thi Hah and got mad because Thi Hah played so much better. The magician cast a spell on Thi Hah, covering his skin with ugly red sores. The spell could only be broken if a princess said that Thi Hah was a master, which was a player of the highest skill. Thi Hah began wearing a mask to cover his face.
One day Princess Yi Yi heard Thi Hah play and asked him to be her teacher. Yi Yi learned to play the harp beautifully. Finally, she said to her father, "Let's have a harp contest. The man who plays better than I do will become my husband." Many men tried, but none could play better than Yi Yi.
After the contest, the sound of beautiful harp music was heard. Yi Yi followed the sound and found her teacher playing. "You're the best harp player of all! You are a master!" she said.
The spell was broken. Thi Hah was now a handsome young man. He and Yi Yi were soon married.
What is the main theme or lesson of the folktale?

The main theme or lesson of the folktale is the power of true talent and skill. It emphasizes the importance of recognizing and appreciating true mastery, as well as the potential for transformation and redemption.