Prompt: Write a short story about a man who discovers a magical portal

At first, he thought it was just an optical illusion. But when he looked again, he could see the unmistakable outline of a door, carved into the trunk of a nearby tree. Curiosity got the best of him, and he stepped through the portal.

He found himself in a fantastical world of lush green forests and sparkling blue lakes. Floating jewel-like creatures spun around him, singing a song of joy. He had never felt so alive.

He kept walking, exploring more and more of the hidden kingdom. Finally, he came to a breathtaking waterfall. As he walked beneath the cascading water, he realized that he had found his true home. He would never again need to worry about the challenges of the real world. He could simply immerse himself in this beautiful place and be content.