You might find this video of interest... it's a lecture given by brain researcher Jill Bolte Taylor on the differences between the brain hemispheres. The most fascinating part is where she describes her personal experience of suffering a left-hemispheric stroke. It's about 20 minutes long, but well worth it.

I couldn't manage to download the flashplayer so it wouldn't play. I read the text and it confirms esoteric religious concepts are bassed on right brain hemisphere.

http://blog.ted.com/2008/03/jill_bolte_tayl.php#more

And I lost my balance and I'm propped up against the wall. And I look down at my arm and I realize that I can no longer define the boundaries of my body. I can't define where I begin and where I end. Because the atoms and the molecules of my arm blended with the atoms and molecules of the wall. And all I could detect was this energy. Energy. And I'm asking myself, "What is wrong with me, what is going on?" And in that moment, my brain chatter, my left hemisphere brain chatter went totally silent. Just like someone took a remote control and pushed the mute button and -- total silence.
And at first I was shocked to find myself inside of a silent mind. But then I was immediately captivated by the magnificence of energy around me. And because I could no longer identify the boundaries of my body, I felt enormous and expansive. I felt at one with all the energy that was, and it was beautiful there.