Anyway, corself can't do nothing more than that because sense of Identity does all the attachments and impetus to the opinion and idea formation. 

Sense of identity, does all of that. The goal of practice is to directly SEE all attachments, ideas, feelings, etc. as impermanent, stressful, unsatisfactory and not comprising a permanent identity.

Core self is not a term I use any more. Mind essence is the term used in Tibetan Buddhism to describe the pure mind which is unobscured by attachments, ideas, etc.  This mind essence is indivisible from its cognizing ability to KNOW.

I'm not a scholar and my memory may have distorted things I've read.  All I can claim as "my own" is the experience I initially shared.

Corself is only a helpless witness and compelled donor of energy mostly.

I think I agree that coreself or mind essence, is a witness but I wouldn't say it is helpless.  It seems to be able to encompass everything though its innate ability to cognize.

By rephrasing Marcia, the sense of identity has lost magnetic polarity, and has become neutralized. 

Sense of Identity is no longer magnetically attaches itself to ideas, opinions and objects, it just floats around.

Ani, this seem strangely related to the example of the pigskin (see response to Michael) which remains on the pig but is not really attached and is just a loose covering. 

 Now based on the degree of neutralization of sense of Identity, different levels of meditative zones and texture of mindspace are experienced and no. of thoughts reduce considerably or cease altogether. 

This seems to be a reasonable conclusion although I'm not sure it applies to when the "ignition is turned off."