If you want to know the definition of "Left-brained" you would need only to examine my life. My habits, my actions, and my mannerisms all point to my powerful left-brainededness (Dave would be proud of me for making up a new word).
If you don't know what I mean basically my personality has thus far been (accurately) characterized as one of a perfectionist, an analyzer, anti-emotion, impersonal (at least to some degree), and mathematical. You might compare a left-brained person with a right-brained person using the analogy of shapes. A left-brained person would be a square, while a right-brained person would be a circle. Everything in my life is usually black or white, right or wrong. There is not much room for grey.
More recently I've begun to hang around people who are more right-brained than I. It turns out this is a very good thing. I believe that God has really shown me how both right and left brain, black and white and grey, intellect and emotion can and do work together to make this world what it is.
I've seen the world become a much more vibrant a bright place to live. My general outlook is more positive, and I see beauty in things I didn't before. The example I can best use is probably that of music. I've come to see just how music takes the precise detail of a note and combines it with others in a creative, (usually) emotional way to create a beautiful melody, peaceful harmony, and moving performance. There really is more out there than I was seeing.
Certainly I'm not going to base major decisions in my life on emotion. I will still be a black and white guy for the most part. I still see the details in everything. I usually miss the larger picture because I'm stuck on the details. I don't usually just appreciate that something is, I want to know how it works. But I will try to look beyond the details to the grander view. To step back and look at the forest. I think that I will appreciate life more because of it.
Next time you're trying to figure out how to make your microwave into a local-area wireless network hub, take some time and check out a sunset. And if you usually catch that sunset, spend some time at the library and find out why the sunset looks so beautiful. You'll be a better person because of it.