An emotion as such tells you nothing about reality, beyond the fact that
something makes you feel something. Without a ruthlessly honest commitment to
introspection—to the conceptual identification of your inner states—you will
not discover what you feel, what arouses the feeling, and whether your feeling
is an appropriate response to the facts of reality, or a mistaken response, or
a vicious illusion produced by years of self-deception . . . .
In the field of introspection, the two guiding questions are: “What do I
feel?” and “Why do I feel it?”