You feel your own life - your heart, your mind, your body, your sexuality, the people and things you are connected to - and you spontaneously fill with the exclamation: "God, it feels great to be alive!" That's delight.
If you're a creative person, you'd better not read what people write about you, because if it's good it'll blow your head up and it'll force you not to take the subway and you'll start taking cabs, and you'd better stay around people, and if it's bad, it just hurts your feelings so much it discourages you.