This is question to those that believe it is. This topic has been touched on in other threads but skirted around rather.
If the the mind is separate and non-physical, then how does it interact with the physical brain?
We can determine that physical processes in the brain are involved in some, if not all, higher level functions (as shown through scanning technolgies and from the observed effects of trauma and drugs); so which aspects of these high level functions (abstract thought, personality, morality etc) are encapsulated in the physcial and which in the non-physical.
And please remember to say how you have determined your answer.