Gods and demons, good and evil - those are all ideas created by mankind, which then take the form of Personas when drawn from the soul. As they are ideas, they lurk within the subconscious mind and take the form one's subconscious believes would be the form of that god or demon.
In the end, a man cannot become a god no more than a god can truly exist outside a man's mind.
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In the end, a man cannot become a god no more than a god can truly exist outside a man's mind.