Yes that is the key contention. I don't think that our minds are material, because if they were then we couldn't handle any immaterial concepts. Although obviou

Yes that is the key contention. I don't think that our minds are material, because if they were then we couldn't handle any immaterial concepts. Although obviously our brains are involved in the operation of the mind, they cannot be an exhaustive explanation of what the mind is, given that he mind is perfectly comfortable to leave the material world behind.