inwardness

1. the choicest or most essential or most vital part of some idea or experience;

"the gist of the prosecutor's argument"

"the heart and soul of the Republican Party"

"the nub of the story"

2. preoccupation especially with one's attitudes and ethical or ideological values;

"the sensitiveness of James's characters, their seeming inwardness"

"Socrates' inwardness, integrity, and inquisitiveness"

3. the quality or state of being inward or internal;

"the inwardness of the body's organs"

4. preoccupation with what concerns human inner nature (especially ethical or ideological values);

"Socrates' inwardness, integrity, and inquisitiveness"- H.R.Finch