What is mind? Never matter. What is matter? Never mind.

This is one of those moments where I am in complete agreement with what Carol writes:
some of us don't see "matter" and "spirit" as being separate at all. To us, it's just the perception of matter and spirit that seems to have separateness.

I couldn't have said it better: It is only our perception that makes us think there is a spirit different from the action of matter.

'Spirit' is a good word (as an abbreviation for more complex things) for daily communication but for scientific purposes it has no meaningful role.

Wolfgang