Spiritual things truly satisfy! The more that heaven is in us—the less earth that will content us. He who has once tasted the love of God, his thirst is much quenched towards earthly things. The joys of God's Spirit are heart-filling and heart-cheering joys; he who has these, has heaven begun in him!https://gracegems.org/Watson/art_of_divine_contentment2.htm
The reason why our souls are so empty of joy, is because our mouths are empty of prayer.
Both prayer and praise widens the heart for receiving more of Christ's fullness.Works 1 - 33
Joy is something very deep and profound, something that affects the whole and entire personality. In other words it comes to this; there is only one thing that can give true joy and that is contemplation of the Lord Jesus Christ. He satisfies my mind; He satisfies my emotions; He satisfies my every desire. He and His great salvation include the whole personality and nothing less, and in Him I am complete. Joy, in other words, is the response and the reaction of the soul to a knowledge of the Lord Jesus Christ.Life in Christ, 30
If you want to try your hand at stoicism, forget the Bible. It has little for you. Scripture does not support the idea that our motives are more pure the less we are pursuing our own joy. Nope. In fact, according to the Bible, unless we are pursuing our happiness we cannot even come to God: for whoever would draw near to God must believe that he exists and that he rewards those who seek him. (Hebrews 11:6).http://www.desiringgod.org/blog/posts/pleasure-is-the-measure-of-your-treasure
the Christian tastes God in all his or her pleasures, and this increases them, whereas for other people pleasure brings with it a sense of hollowness which reduces it. God Has Spoken (14)