From Epitaph Player Wiki
The Maestro is Epitaph's event generator - it is responsible for ensuring that players live in Interesting Times. Maestro tracks all players, and makes a note of interesting aspects about their current states. When it deems it's appropriate, it'll throw a curveball your way.
How does he work?
That's a secret...
What states does he track?
That too is a secret. But one of the things it pays attention to is how noticeable you have been.
Does he really exist?
Is there any good news at all in here?
If you are in trouble - serious trouble - you might want to try prayer. Pray to Maestro and you might find yourself abruptly plucked from danger and returned to safety. Or not. Sometimes he'll just make things worse. It's an option though.