Source of Happiness

Where does so-called happiness come from ?   Following is a figurative story about happiness :   A dog got a bone on the road.  He started eating and biting the bone.  The bone shed delicious broth continuously.  However, in fact, the broth was its blood flowing from its gum hurt by the bone edge.  This means that happiness comes from our own mind, not from the objective like money, status, power, etc.  If you don't fully agree to this,  please figure out the reason.  It is said that happiness comes from the peace of mind.