Jesus promises his disciples a joy "that no one will take from you."   To be joyful we have to be attentive and sensitive to the great goods in our life.  Among these are God's constant love for us and our own ability to love and serve him in return.  Pride obscures our vision of true goods.  To serve joyfully and find joy in serving, we need to foster humility. https://comeawaybyyourselves.com