Inwardness

Internal or true state; essential nature; as, the inwardness of conduct.

Intimacy; familiarity.

Heartiness; earnestness.

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"

preoccupation with what concerns human inner nature (especially ethical or ideological values); "Socrates' inwardness, integrity, and inquisitiveness" - H.R.Finch

preoccupation especially with one's attitudes and ethical or ideological values; "the sensitiveness of James's characters, their seeming inwardness"; "inwardness is what an Englishman quite simply has, painlessly, as a birthright"