In novels, the ability to traverse planes usually referred to the ability to traverse multiple universes or planes. The ability to randomly traverse galaxies in the universe was usually not considered a kind of ability to traverse planes. This is because even if we have the ability to cross planes, we can't be completely sure if we can accurately cross a galaxy because it depends on many factors such as interstellar distance, the density of matter and energy in the galaxy, as well as the speed and direction of our travel. Although novels often described the ability to traverse planes to randomly cross galaxies in the universe, this was only a fictional setting that did not conform to reality. In the real world, we can't be sure if we can accurately travel through a certain galaxy because our ability is still affected by many unknown factors.