Happiness is being true to thyself and having the courage to mantain thy integrity in the face of adversity.
Though thy path may well be tumultuous, t'is thy Path, and no other's, and nary another shall be able to keep thee from thyself if only thou wouldst remain at thy reigns, then within thyself, thou shallt e'er reign.
Therein lies the quest of Happiness. One owes it to One's Godself to be just that.