"Solaris" is a masterpiece of philosophical science fiction. We are at the farthest edge of the universe explored by humanity. An astronaut from Earth arrives at the space station orbiting the planet Solaris. Solaris is known to humans as the great "living" planet. It appears in the form of a vast ocean and would have exploded if its orbit had followed the laws of physics. But it seems to be endowed with the ability to react consciously, and this ability seems to be linked to the appearances of ghosts, living projections of nightmares, dreams, and fantasies.
The astronaut is forced to question himself as he is infected by the same anguish that dominates the entire environment. An exciting adventure full of suspense and mystery. But it could also be said that it is an epistemological adventure, in the sense that it presents a huge number of questions that inhabit the branches of philosophy for reflection. Among them, the most suggestive seems to be the theme of Identity, Subject, Self.