Hum, This was the one part of LoTr I did not understand. Also, Why did Sauron not take physical form? He was a miar, he changed his form many times, for example, even when Huan the wolf destroyed his giant wolf form sauron's spirit fled and took another shape. And all those who are saying "Well the ring stopped him from taking shape" I say this; he took form as the necromancer, physical form. That dose not explain why he did not take a form when he returned to Mordor?
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