In an age where GPS satellites provide an invisible grid of absolute certainty, the ancient skill of celestial navigation has drifted into the realm of the poetic. To navigate by the stars is to engage in a profound dialogue with the cosmos, treating the night sky not as a distant backdrop, but as a functional map of light and geometry. For the mariner of old, the sea was an endless, featureless expanse, and the only reliable fixed points were millions of miles away. By measuring the angle between a star and the horizon with a sextant, the navigator could translate the celestial mechanics of the universe into a precise coordinate…