Echoing sounds

I hear echoing sounds around the room,
No one talked,
No one fought,
I was pulled onto a chair,
Poking needles in my skin,
They said to be quiet as it begins,
I tried to shout,
No voice came out,
I laid there as I was being prepared,
I swallowed hard,
As I heard a rhythm of a guitar,
The last thing that I saw was a line going straight,
As I felt my pulse go away, away, away.