Happiness is true, even though it fades, and meaning is also true, despite the fact that it endures. Those experiences that define what it most means to be human are true not because they endure, they are true because they are meaningful. Being human is not about being happy, not because happiness fades, but because the apex of the human experience is not happiness but meaning. Meaning endures not because it is true but because it is not dependent on circumstance. Happiness is transient not because it is false but precisely because it is dependent on circumstance. Each emotional experience is true in its proper domain. What makes one fleeting and the other lasting is not truth but the fact that one belongs to the temporal and the other to the eternal.
