The next element of happiness you need to master is imagination. I wrote about this in the context of raising your energy, which is closely related to happiness, but it bears repeating in this chapter. Pessimism is often a failure of imagination. If you can imagine the future being brighter, it lifts your energy and gooses the chemistry in your body that produces a sensation of happiness. If you can’t even imagine an improved future, you won’t be happy no matter how well your life is going right now.