#110 Joy

What is joy? 
Checked out some internet stuff to learn more about this emotion.
Joy, according to Merriam-Webster online, is the emotion evoked by well-being, success, or good fortune or by the prospect of possessing what one desires : delight
or
the expression or exhibition of such emotion : gaiety
or
a state of happiness or felicity : bliss
or
a source or cause of delight
What are your joys?