If the soul is beyond the purview of the natural sciences, then no, it wouldn't be logical .... actually it would be the other way around, namely the soul would be essential to the existence of the (functioning) brain.Well SetiAlpha6 made a comment that seemed to associate the soul with the brain, that’s why I was interested in his take on the question. Since the brain is the instrument of human experience, wouldn’t it be logical to assume that it would be essential to the existence of a soul?