[Nyororin]

It`s a polite and formal rejection.
They basically thank you for your interest, but are unable to fulfill your request.
They carefully considered your desired position, but want you to understand their decision.
It also says that they returned the documents you sent them.
They send you their best wishes...

And that`s about it for a quick rundown.

I take it you applied out of the blue? The tone kind of implies that.