Happiness, in a religious context, can get pretty tricky to try to explain. I know plenty of Christians who attend a church service, partake in a redeemed rock concert, get pumped up by a motivational speaker, and then ride the adrenaline wave to their Sunday afternoon nap. That may count as a euphoric high, but it falls greatly short of the happiness described by the Psalmist when he says that the Lord has anointed lovers of righteousness with the oil of gladness. Gladness is not a worship-high. It is a state of being.