The lightning guides everything

I love this statement of Heraclitus, "The lightning guides everything." Here are Jean Grondin's words quoted in Ivo's notes on Hermeneutics: "Gadamer recalls the maxim of Heraclitus, ‘The lightning guides everything,’ which was scratched over the doorway of Heidegger’s hut. Lightning here means ‘the suddenness of lightning-like illumination that makes everything visible with one strike, and yet is immediately swallowed up in darkness again.’ To that extent the truth of understanding means more something like participation than ceaseless, irremediable appropriation." [Grondin, Introduction to Philosophical Hermeneutics 136. The Gadamer reference is from GW 6:232 and 241.]