Final answer:
Amir's vision of him and his father meeting like Rostam and Sohrab is strange because it represents his desire for a legendary relationship that conflicts with their actual relationship, while also aspiring to the heroism and ethics of the Shahnama's characters.
Step-by-step explanation:
The vision of Amir and his father meeting in the same legendary manner as Rostam and Sohrab from the Shahnama is strange because it serves as a reflection of Amir's desire for a mythical and heroic relationship with his father, which is at odds with the reality of their complex and strained relationship. This vision mirrors the broader themes of idealized heroism versus the reality of human imperfections and the individual's quest for redemption and approval. In the context of the Shahnama, which emphasizes the importance of courage, ethics, and the ideals of just rule, Amir's vision can be seen as an aspiration to emulate these heroic qualities in his own life. Yet this vision also highlights the tension and potential for misinterpretation or failure in trying to live up to such lofty ideals.