"I am related to this nature": In his last intellectually fruitful years, Friedrich Nietzsche sought peace and movement at Lake Sils for seven summers. For the semi-nomad, this was a remarkable consistency. In Sils-Maria, the idea of eternal recurrence opened up to him. At Lake Sils, he had the central inner encounter: "And Zarathustra passed by me." Ludger Lütkehaus, a profound expert on Nietzsche and a passionate mountain hiker in the Upper Engadin, explores this landscape continuity. In a text of cheerful clarity and further reflection, he reconstructs Nietzsche's experiences with light and landscape, heights of joy and abyssal depths, places of nature and places of thought. He follows the shadow-seeking of the eye patient, as well as the comedy in some social gatherings, and traces the remnants of these stays all the way into the wordings of the last.