Joy is a gift; it’s a spiritual gift. Generally speaking, if you want to receive a gift, don’t keep your hands in your pockets. Open your heart and open your hands to receive the gift of joy. Cooperate with God.
To listen to the podcast (18:10) from the Brothers of The Society of St. John the Evangelist (SSJE) Monastery in Cambridge, MA: https://www.ssje.org/4.audio/12days/day4.mp3
Blessings, my friend