Figure 1.1 My jogging route in La Jolla, California: Black’s Beach. From the runner’s perspective there is both an extent of space and a period of time to cover. The space of time is indissolubly space and time.
Figure 1.2 Specimens of the long-lived bristlecone pine (Pinus longaeva) in the White Mountains in California, where the oldest tree is over 5,000 years old. Although such long periods of time cannot be experienced directly by humans, there are nevertheless reports of drug-induced dreams and time travels in which the subject lives for thousands of years. Perhaps these experiences are due to emotions that are evoked by chronologically narrated stories, for example, imagining that the trees in this photo were already a thousand years old at the time of Socrates and Jesus.
Figure 2.1 The Necker cube is a bistable image, which can be viewed “from above” and also “from below” and which can be used to investigate changes in the present-time experience.
Figure 2.2 Karl Otto Götz, Tunset, 1958, Museum für Neue Kunst—Städtische Museen Freiburg. Photo: Hans-Peter Vieser, inv. no. M87/012 © VG Bild-Kunst, Bonn, 2015.
Figure 2.3 This picture of a sunset over the sea recalls paintings by Mark Rothko. In his paintings, Rothko tried to visualize meditative experiences in which time and space dissolved.
Figure 5.1 An unscheduled visit to the emergency room of University Hospital Freiburg after investigating the effects of a floating tank on consciousness.

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