My impression of the mermaid

It was a difficult and imaginative short movie, but I'm kind of used to something like this, so I didn't get lost during watching the movie. It was my first time to see an animation by osamu tezuka but Mighty Atom. I knew he makes many strange stories, but this was my first strange movie by him. It's a kind of style that it can be interpreted in any ways, but what I think of the story is going to be two ways. One is that the boy was crazy from the start and hallucinated. Every psychedelic experience he was experiencing was caused by taking too much drug or something. The other is that the mermaid was actually real and she was created or only seen by people who have free imaginative thoughts, but the country which the boy lives in doesn't accept the way of ideas, so he was abused not to think like that again. The ending is I think about the boy's death. The mermaid he saw at the last may be either hallucination he saw when he was committing suicide by drowning or a small fish turned back into the mermaid by the boy's last remained imaginative power gotten from the ocean, but there were many soldiers chasing after him, so I think he is going to be killed for breaking the law of the country. Oh, this impression got absurdly long!