Written in response to a question posted here.
We need to bear in mind than many people report enhanced states of awareness during near death experiences, when brain function is reduced to sometimes unmeasurably low levels. That is, they feel their experience is more real during the NDE, when brain function is minimal, that during daily life when it’s functioning normally.
This suggests the brain may be more of an inhibitor to awareness than its creator. This supports the view of many spiritualists, who hold that we are more conscious when the spirit leaves the physical body than when it’s ensconced within it.