Steinbeck repeatedly writes of Kino's fear and anger. What is the relationship between these two emotions in Kino, and how do they compel him to think and act?

Kino has had to contend with highs and lows of potential fortune. He faces injustice at every corner. He is humiliated by a doctor, he is cheated by pearl buyers and he is pursued by killers. Kino oscillates between the only two emotions that match his circumstances.

Kino stood in the door, filling it, and hatred raged and flamed in back of his eyes, and fear too, for the hundreds of years of subjugation were cut deep in him. (ch 3)