Knowing Imagination

Is imagination dependent upon the brain? Rational logic would suggest it is. But some people report imaginal experiences such as the white light of near-death experiences even though the brain is observed and measured as dead. One segment of the fascinating NPR series "The Science of Spirituality", covers near-death experiences and phenomenon such as meditation, in which brain activity has been measured. Click here to go to NPR to hear the 10 minute segment, or read the full story. Perhaps this lends some credence to the idea that imagination as a way of knowing transcends the limitations of the physical body. What do you think?