I know it's a metaphor, but the point is you are making an analogy for God. You are saying that just like the rays emanate from the sun, and have the exact same ESSENCE as the sun, therefore, the Prophets of God emanate from God and share His ESSENCE. this is nothing but idolatry!
No one has the essence of God. I realize that you are making a distinction between God Himself and the Prophets, who are separate from Him, but the fact that you said that the Prophets share God's essence is still a form of idolatry.
Islamic terminology is much more precise and simple to understand. According to our religion, Prophets are not "manifestations of God", but rather a proof that God exists, they are "signs of God". In fact, not just prophets, everything you see, the sun, the moon, the stars, the clouds, the trees, the mountains, the ocean, all of these are created by God and pointing to His existence. In this sense, yes, the Prophets too are manifesting the existence of God.
However, what you are saying is different, that the Prophets have the same essence as God just like a ray has the same essence as the sun, whereas we reject such a belief as blasphemy.
[/size][/font]Allah's Essence is exalted beyond comprehension, but His Attributes are knowable. His attributes being, for example, His Mercy, His Love, His Power, His Greatness, His Knowledge, His Speech, these are things we know and can directly experience, but God's Essence is unknowable.
And here again I beg to differ, Prophets are just like any human being, there's is nothing special about their makeup. They eat, sleep, breathe, drink, live and die like anyone else. They have the same origin as all humanity, all humanity was created through Adam, the first man, whom God fashioned with His own Two Hands out of the dust. This is the origin of mankind, I don't know what you mean when you say "their true origin is in the Worlds of God."?!