Joy, like love, is an impenetrable, God-given state of being. The distinctions between joy and happiness and love and affection are important ones under the notion that happiness is an 'iffy' emotion, a highly dependent feeling both aroused and destroyed by external conditions apart from God. And the distinction between love and affection is parallel to such.

Killosophy: (ed. Criss Jami, 2015) - ISBN: 9781506149356