Hello, thank you for listening!
The actual reason of this piano version is that it's made out of curiosity, to see what the original song sounds like with pianos.
The reason within the original song however, is to portray a feeling of being mentally trapped, not knowing where to go. The notes getting progressively higher is as a sign of screaming for help, but ended up only emitting noises, not even a voice can be heard.
Towards the end, (in an unreleased edit) the song suddenly turns into a bunch of noise, portraying that all of this "screaming for help an attention" is deemed useless.
I feel like the title is a bit unorthodox, or rather a bit not-good for a song that matters the most for me, but it might be just me.