Wheelchair.
I didn't get that? Why did it catch his attention?
shareForeshadowing. He ended up needing one.
.;*We Live Inside A Dream*;.
Based on the ending, we could suspect that Séverine fantasized him looking at it. That would explain how he was captivated by it, as a seemingly clairvoyant and too-convenient foreshadowing.
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The story is king.