The Transparent Prison of Isolation Sunlit Park Meaning & Interpretation

"I stood inside a clear glass cube in the middle of a peaceful green park. I could see my friends laughing and playing outside under the bright sun. I hit the heavy glass with my hands, but no one could hear me. I called out their names, but they never turned around to look at me. The transparent walls kept me completely separated from everyone else. Tears rolled down my face as I sat on the cold floor. I wrapped my arms around my knees and watched the world move on without me. A deep heavy feeling filled my heart because I was trapped all alone."