The word is mightier than prison bars?

Here is a story by the BBC about a young man who managed to switch tracks from prison to poetry.


“The word is mightier than prison bars?”

Somehow I was expecting a thread about a prisoner converting to Christianity xD
“the word” …" mighty"…you know.^^

“I spend one and a half year in solitary confinement. I almost went crazy”

How the heck did he manage to spend that much time alone without going crazy?
I start to feel funny after only a few days of Hikikomori (voluntary social isolation)