Dawn is overrated. But the first train is always a godsend.
“The breath of the moist earth is light around its unexpanded buds.” –Shelley
“The regularities of the metro are obvious and well established. Both the first and the last metro perhaps draw some poetic allure from being seen, thus assigned an immutable place in the order of everyday life, the two being symbols of the ineluctable character of limits, of the irreversibility of time, and of the succession of days.” (Augé ,28.)