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

Gregory had always been a bit of a loner. He had a few close friends, but he preferred to spend his time exploring the countryside by himself. One day, Gregory stumbled upon a strange portal. He walked through it and found himself in a mysterious place. The sky was a beautiful blue, and the trees were adorned with vibrant leaves. Gregory was amazed by the beauty of the place, and he felt a sense of ease and peace within him. He knew he had to explore this place further.