Translation of provecho

I grabbed a burger from an American fast food chain and swallowed it immediately, as I had not eaten for a while. I boarded the machine and could feel a slight stomachache but decided to ignore.
In the following pages I would like to talk about a topic which should concern everyone of us. It is a delicate topic which has been present as long as human beings have existed and it will last forever.
To be honest, we did not understand one word of what he was saying, because his English was so terrible. Or maybe it wasn't and it was only his accent which we could not grasp. To us it was Chinese.