What is happiness. When we lack peace, joy and love, we are unhappy. We try to fill the voids in our lives with many different things and people and these are temporary. We seek long-lasting happiness and fulfillment and find that we are not designed to fill someone else's container. We are selfish and our hearts are deceitful. God examines the heart and test the minds and He only can give us long-lasting fulfillment and happiness.