A new definition for the soul is required

A question for the spiritual people out there. What is the soul?

Before you answer please be aware of this -

We know that the mind is what the brain does. Our personalities which are mainly herditary are managed in the brain. Our memories are stored in the brain. We know that brain damage can effect personality, memory and IQ. We can say now with confidence that the brain does not require anything more than what we can measure for it to work (or not work).

We also know that the terms 'energy' and 'force' are quantifiable and measurable terms in science. We know that the soul is not something that can be measured or tested in any way and therefore those terms are not appropriate to use.

Given all these things, where does the soul sit? What does it do? Given it is not required by our brains to function and make us who we are, what is the definition of a soul? Where is the new gap it fits now that we have filled so many previous gaps with knowledge?

We so want to fill our lives with magic and wonder that we make up these terms which are simple and comforting to help explain what we dont know. But when we do this we miss the real mystery, the real magic.......... our brains.

You know what you believe, why not find out what the experts who actually study this stuff know.

Here are some recommended readings and listenings -
The Brain Science Podcast
Genome & Nature Via Nurture by Matt Ridley
How The Mind Works & The Blank Slate by Stephen Pinker
http://www.ted.com/
The Mechanism Of Mind by Edward de Bono
http://brainrules.net/