Happiness is the sense that my life is good because my biological needs are being met. Meaning is the sense that my life is significant because it has met the needs of another. Happiness bestows the feeling that I am whole. Meaning bestows the feeling that I matter and am valued. Happiness is an event, and meaning is a state. Happiness is the means to an end; meaning is an end in itself. Happiness fades; meaning accumulates.
James Castleton, MD, Mending of a Broken Heart