Isn’t pantheism the same thing as atheism?

[Ferrocyanide]

By personal, do you mean it has a brain?

No.   Thinking would be personal, intentional would be personal, concerned would be personal, appealable would be personal, deciding would be personal.  

Conceivably, an entity or force could do those things with something other than a human brain, or a brain at all.  

Maybe my english is not so good.
For example, if this cup is mine, I would say it is my personal cup. In other words, the word personal means “it belongs to”.

Your english is fine.  Personal as in the above, the difference between a theistic god, a deistic god, and nature.  The first is personal and intervening.  The second is personal and non intervening. 

That’s the thing I don’t understand.
An entity can do thinking, have intention, be concerned, be able to decide wouldn’t having a brain?
I don’t see how.

By brain, I don’t necessarily mean a human brain. I just mean a device that has circuits, it would have data processing circuits and memory.
So, I am talking about intelligence.
Of course, there is the problem of describing what is intelligence and what is not.

Something like a human, a cat, an elephant, a computer +its software, these things are clear to have a processor (data processing), memory.