Definitions of inwardness:

• noun:   preoccupation with what concerns human inner nature (especially ethical or ideological values)

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

• noun:   the quality or state of being inward or internal

  Example: "The inwardness of the body's organs"

• noun:   preoccupation especially with one's attitudes and ethical or ideological values

  Example: "The sensitiveness of James's characters, their seeming inwardness"

• noun:   the choicest or most essential or most vital part of some idea or experience