This painting refers loosely to a common idea in science fiction novels and speaks about the mystery of a more developed and advanced creator civilization. You can find this at „The Expanse“ or even in the book „Roadside Picnic“ by the brothers Arkady and Boris Strugatsky.
In the storyline of „The expanse“ the creator civilization developed a system of gates that connects disparate and faraway solar Systems, allowing civilization rapid travel and conquest across the galaxy.
Adrian Tchaikovsky, the author of „children of time“ proposed a advanced human civilization in the near future, which used space travel technology for power and profit.
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The waiting house in the middle of the painting is decorated with wallpaintings inspired by posters of the golden age of Soviet cosmonauts. „The cult of science and space exploration in the Soviet Union was as close as to religion as you could get in an atheist state. The Soviet faith in space became bigger than God.“

As a teenager, I read science fiction novels, such as Return from the Stars by Stanisław Lem and Roadside Picnic by the brothers Arkady and Boris Strugatsky. Since then, I have read tons of science fiction novels with entirely different cultural backgrounds.
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I think my interest in the concepts of travel, including space travel, has something to do with the cultural divide that existed before the fall of the Berlin Wall. It fascinates me to read about past generations of painters, architects, and writers in the former zone of Soviet influence and their limitations concerning travel.