“Means for acquiring Joyfulness:

1. Ask the Lord for joyfulness. Joy or cheerfulness is the second fruit of the Holy Spirit [Galatians 5:22]. Blessed [John] Berchmans [1599-1621] was always so joyful that many called him Saint Leto [joy] and Saint IIario [laughter]. Joy was a grace he daily prayed for at Mass.
2. Think frequently of the Lord and thank Him for the goods that we possess and hope to possess. For example, thank him for the grace of God that we possess, and for the Paradise that we hope for. Let us go often to take from the Angels and Blessed above, an air of joyfulness, thinking that from now on we are citizens of Heaven and fortifying ourselves in Christian hope.
3. Perform good deeds with holy readiness and simplicity. Do things with good intention. Do them immediately, without reasoning too much on them, becoming over-reflective. Rather, cut off all ruminations, saying to oneself: ‘I should not dwell on this, one needs only to do what is good.’ Likewise, it is helpful to act with holy freedom of spirit,
despising every fear that is not founded on offending God, not waiting for tomorrow that which you can do today.”

“Through joyfulness one avoids sins and easily triumphs over temptation. It is proper to temptations to begin to instill despondency and sadness. And in these troubled waters the devil begins to fish. The joyful man has great regard for and always enjoys the spiritual goods he hopes for and possesses. When these are compared to the apparent goods temptations offer, he quickly decides the question with the exclamation of St. Philip, “Paradise, Paradise.” Therefore, he sins less and gains much more merit… With joyfulness, one drives out the sloth which impedes the practice of virtue.

With joyfulness one easily acquires holiness and perfects oneself through virtuous actions. “God loves a joyful giver” (2 Corinthians 9: 7). Joyful giving is done not as a burden, but by good grace, with love. If one thinks too much about a good action that is to be performed [and thus hesitates], the merit of that action will be diminished… So act promptly… The one who gives promptly, gives double.

Compare a sad person with a joyful one in their daily activities. The despondent one behaves like an old lazy man, who is sleepy, cold, frozen…. The joyful one behaves like a young man who carries himself well, is graceful, robust, and energetic. In fact, if one prays, if one meditates with joy, if one approaches the sacraments joyfully, if one converses with his neighbor with joy, how many sins against God and neighbor will be avoided!

With joyfulness one’s perseverance in good is more easily assured, because doing things with sadness and against one’s will constitutes a violent state that cannot last. In such a case, if great difficulties are encountered, how much more easily is everything abandoned. The joyful man, on the other hand, is resolute, generous, energetic, and so he easily overcomes the difficulty of perseverance.”