also, Sauron's real or "spiritial" form was not the great eye, the Aniur's(Valar and Miar) real forms were not visible, except for maybe a white/light light blue or red almost translucent flame.
I agree that Sauron's blodd mingled with the ring and he needed it to regain the strength he once had.
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As you go the way of life, you will see a great chasm. Jump. It is not as wide as you think
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