Realization consists of getting rid of the false idea that one is not realized.
Such happiness is relative and is better called pleasure or satisfaction.
The deeply learned ones know the mind as the directly expressed meaning of the supreme knowledge. The heart is the meaning aimed at. The Supreme is none other than the heart.
Realization is to get rid of the delusion that you have not realized.
As you are, so is the world.
That is the ego which rises and sinks periodically. But you exist always. That which lies beyond the ego is consciousness - the Self.