Something at the core of her being was changing, awakening.
By "self" she understood the core of one's own being and potential.
She knew he was still alive; she could feel it in the core of her being.
Nadine was shocked right down to the core of her being.
An answer that shocked Charity to the core of her being.
She jabbed at him with the very core of her being.
Yet, deep in her heart, at the very core of her being, she knew it was true.
That's how you come to believe, to the very core of your being, that work is more than a paycheck.
It was only natural that she should hate him to the very core of her being.
Finally, let's stop suppressing the spiritual core of our national being.