I sit at my desk, at 4/4.30 in the morning and I start writing, longhand, in silence (my spouse is sleeping in the next room, so is the entire city around us, and so are our noisy neighbors who will have turned off their stupid blaring box, aka their TV). Later on, I will start hearing a few birds singing, which feels amazingly good and motivating, and then a little later I will start hearing the roaring of engines vehicles invading the streets—which feels a lot less pleasant to me, and is the signal I should quit writing. Then I prepare breakfast for the two of us, probably picking up some fresh croissants at the nearby bakery.
So, not much of a ritual for me beside waking up early (which is something I've always done) and enjoying an almost undamaged silence.