Hope is an optimistic state of mind that is based on an expectation of positive outcomes with respect to events and circumstances in one's life or the world at large.
A belief is an attitude that something is the case, or that some proposition about the world is true.
A vision is a way to answer your own “why” of life. It gives you the reason for your actions, choices, hopes, and desires.
The term happiness is used in the context of mental or emotional states, including positive or pleasant emotions ranging from contentment to intense joy.
