What is the connection between controlling the senses, looking inward, and finding genuine happiness?

As detailed in Chapter 17, there is a direct and crucial connection between sense control and happiness. The text explains that as long as there is enjoyment of external objects, there is no resistance to the pull of the senses. The path to liberation requires the restraint of these senses, a reversal of one's natural tendencies, and the vision of the inner Self. Only upon turning away from worldly objects will the senses become oriented toward the Self. It is in this state that true happiness reveals itself, with the text asserting that all else is simply unhappiness.