You know what the first rule of flying is? Well, I suppose you do, since you already know what I’m about to say. Love. You can learn all the math in the ‘Verse, but you take a boat in the air that you don’t love, she’ll shake you off just as sure as the turning of the worlds. Love keeps her in the air when she oughta fall down, tells you she’s hurtin’ 'fore she keens. Makes her a home.