1. A feeling of great pleasure and happiness.
"tears of joy" 
Synonyms: delight, great pleasure, joyfulness, jubilation, triumph, exultation, rejoicing,happiness, gladness, glee, exhilaration, exuberance, elation, euphoria, bliss,ecstasy, rapture; enjoyment, felicity, joie de vivre, jouissance; 
Literary jocundity
"whoops of joy"
2. pleasure, source of pleasure, delight, treat, thrill
"it was a joy to be with her"

Comparison is the thief of joy.
Theodore Roosevelt

Joy is what happens when we allow ourselves to realize how good things really are.
Marianne Williamson
The present moment is filled with joy and happiness. If you are attentive, you will see it.
Thich Nhat Hanh

Find a place inside where there is joy, and the joy will burn out the pain.
Joseph Campbell