Watching it now, I am still amazed by the layers of story logic and settings. Watching this movie as an adult still makes me feel like I am from another world. Maybe the feeling of watching the movie, together with my short life experience, has become The intertwined web of dreams and reality in the story is created. Only now do I understand why my wife is immersed in illusions and can't extricate herself. What does the male protagonist rely on as a life-saving straw to distinguish reality from dreams? In the final analysis, how important is truth and falsehood? Maybe those infusions on the dark hospital bed in the basement The reality in which the sleeping man arrives makes more sense. In fact, we can never understand where we come from and where we are going. The unpredictable real experience of each moment is the only real feeling that human beings can grasp.