Can you demonstrate what comprises our contemplation of reality in material terms?
We haven't got to the stage where we can read people's thoughts with high definition using technology, but the basis is there. Mind reading and mind writing technology are on the horizon, and this would not be possible without an understanding of the material basis of mental states.
We don't need neuroscience to reveal that thinking is physical work - things like mental exhaustion, after exams, say, is part of our common experience.
What evidence is there that 'contemplation' etc is not a material activity ?