Noun
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