Three Parts To Every Human

In an ancient text, penned on papyrus, an enchanting story is told: 

Now the Lord had shown unto me, Abraham, the intelligences that were organized before the world was; and among all these there were many of the noble and great ones; And God saw these souls that they were good, and he stood in the midst of them, and he said: These I will make my rulers; for he stood among those that were spirits, and he saw that they were good; and he said unto me: Abraham, thou art one of them; thou wast chosen before thou wast born.

What is an intelligence? And later Abraham describes these as spirits. There isn't much written about the intelligence, but I had a spiritual teacher tell me once that the intelligence was a light located in the middle of our brains. Shortly after our discussion I ran across this picture on the Internet:
I also ran across pictures similar to this common diagram:

Both of these pictures were found in an image search for the pineal gland which I had heard was one time called the spiritual gland because doctors didn't know what it was. Upon reading more about it I found that this gland remains dormant in most people or at least that's what one article said. I've heard this gland called the all seeing eye as well. All of this ties into what I believe the intelligence could be.

I believe that before we were created as spirits we were intelligences, a speck of light in the universe somewhere. We had the ability to understand what we were and communicate to some degree and it all felt very natural and safe because that's who we were. Then an enlightened being with a spirit and a body asked if we wanted to be like Him. We agreed and this poem I wrote describes the rest:

Once an Intelligence thought about a spirit

And It was born one

Once a Spirit thought about a Body 

And It was born one

Once an Intelligence, Spirit and Body

Thought about Godhood

And It became one

This is the only theory about "the real you" that makes sense. You can say there is something perfect in everyone but we know our bodies aren't perfect. We know that our spirits can be troubled, down, angry and evil. So what part of us is perfect, untouchable?