“WHEN A PERSON has access to both the intuitive, creative and visual right brain and the analytical, logical, verbal left brain, then the whole brain is working.  There is psychic synergy taking place in our own head.  And this tool is best suited to the reality of what life is, because life is not just logical – it is also emotional.”  Steven Covey Daily Reflections for Highly Effective People.

I would actually suggest that life is ‘spiritual’ and our egos attempt to put life into logical boxes. The attempts to create logic out of illogical situations end up causing emotional responses.   I like the quote “We are not human beings having a spiritual experience, rather we are spiritual beings having a human experience.”  Our brains try to rationalize this human existence and those existing solely in the 3rd dimension believe their brains are in control whereby both the creative and logical hemispheres of the brain are in control.  Except, the universe is in control, we have thoughts which we can observe but not control. 
There is no doubt that the 2 sides of our brain allow us to be creative or logical and operate.  Our brain lets us remember the past, think about the future, talk, type, assemble the results of our 5 senses for us to comprehend;  the colour red, the smell of roses, the taste of salt, the sound of a bird etc.  We plan for the future, dwell in the past, worry about an upcoming event, but all there really is is the present moment.