Saint Casimir, born on October 3, 1458, in Krakow, Poland, was the third son of King Casimir IV and Queen Elizabeth of Habsburg, abdicating earthly ambitions and the prestige of the court to follow a life of profound piety, chastity, and severe penance. Educated under the precepts of illustrious masters, he stood out from an early age for his brilliant intelligence and incomparable Eucharistic and Marian devotion, living with extreme austerity even amidst the riches inherent to his condition as prince of Poland and grand duke of Lithuania. When the Hungarian nobility offered him the crown of the country in 1471, he refused it out of love for peace and justice, preferring the silence of prayer and renunciation. Later, when temporarily governing Poland as regent between 1481 and 1483, he stood out for his unwavering temperance and prudence, dedicating himself tirelessly to the care of the poorest and most destitute, being called the father and defender of the needy. Even when urged to marry to ensure the succession to the throne, he kept firm his vow of virginity, consuming his strength in the love of God until his premature death at the age of 25, a victim of tuberculosis, on March 4, 1484, leaving as the great testament of his soul the inspiration for the fervent Marian hymn Omni die dic Mariae:
📖 Introit (Ps 36, 30-31; Ps 36, 1)
Os justi meditábitur sapiéntiam, et lingua ejus loquétur judícium: lex Dei ejus in corde ipsíus. Ps. Noli æmulári in malignántibus; neque zeláveris faciéntes iniquitátem.
The mouth of the righteous speaks wisdom, and his tongue utters justice. The law of his God is in his heart. Ps. Do not fret because of evildoers, nor be envious of the workers of iniquity.
📜 Epistle (Sir 31, 8-11)
Beátus vir, qui invéntus est sine mácula, et qui post aurum non ábiit, nec sperávit in pecúnia et thesáuris. Quis est hic, et laudábimus eum? Fecit enim mirabília in vita sua. Qui probátus est in illo, et perféctus est, erit illi glória ætérna: qui pótuit tránsgredi, et non est transgréssus: fácere mala, et non fecit: ídeo stabilíta sunt bona illíus in Dómino, et eleemósynas illíus enarrábit omnis ecclésia sanctórum.
Blessed is the man who is found without blemish, who has not been drawn by gold, nor put his hope in money or in riches. Who is this, that we may praise him? For he has done wonderful things in his life. He who has thus been tested and found perfect, shall have eternal glory. He could have transgressed the law of God, and did not transgress it; he could have done evil, and did not do it! That is why his goods are established in the Lord, and why the whole assembly of the saints will proclaim his alms.
✝️ Gospel (Lk 12, 35-40)
In illo témpore: Dixit Jesus discípulis suis: Sint lumbi vestri præcíncti, et lucérnæ ardéntes in mánibus vestris, et vos símiles homínibus exspectántibus dóminum suum, quando revertátur a núptiis: ut, cum vénerit et pulsáverit, conféstim apériant ei. Beáti servi illi, quos cum vénerit dóminus, invénerit vigilántes: amen dico vobis, quod præcínget se, et fáciet illos discúmbere, et tránsiens ministrábit illis. Et si vénerit in secúnda vigília, et si in tértia vigília vénerit, et ita invénerit, beáti sunt servi illi. Hoc autem scitóte, quóniam si sciret paterfamílias, qua hora fur vénerit, vigiláret útique, et non síneret pérfodi domum suam. Et vos estóte paráti, quia qua hora non putátis, Fílius hóminis véniet.
At that time, Jesus said to his disciples: Let your loins be girded, and lamps burning in your hands. And be like men waiting for their master when he returns from the wedding, so that when he comes and knocks at the door, they may immediately open it for him. Blessed are those servants whom the Lord, upon returning, finds vigilant. Truly I tell you: he will gird himself and have them sit at the table, and passing among them, he will serve them. And if he comes in the second watch, or if he comes in the third and finds them thus, blessed are those servants! But pay attention to this: if the master of the house knew the hour when the thief would come, he would certainly watch and, without a doubt, would not let his house be broken into. Thus, be you also ready, because at an hour you do not expect, the Son of man will come.
🛡️ The vigilance of the just and detachment from the world
The gospel command to keep the loins girded and the lamps burning reveals the continuous attitude of expectation required of the one who harbors the law of God in his heart, as sung in the Introit of today's Mass. According to the teaching of Saint Gregory the Great (Homilies on the Gospels, 13), to gird the loins means to curb the desires of the flesh and subjugate worldly passions, while the burning lamps represent the good works that shine through virtues. Saint Casimir perfectly embodied this precept: by professing a heroic vow of chastity amidst the comforts of the court, he girded his loins with purity; and by dedicating himself tirelessly to the poor, he kept the radiant flame of charity burning. This vigilance is not a state of anxiety, but the living expression of one who meditates on divine wisdom and does not envy those who practice iniquity, possessing an inner peace that the world can neither offer nor understand, allowing him to open the door immediately when the Bridegroom knocks.
The praise that the Epistle directs to the man found without blemish, who did not place his hope in money or earthly riches, finds its concretization in Saint Casimir's renunciation of the throne of Hungary and the glories of power. He understood in practice what Saint Thomas Aquinas (Summa Theologica, II-II, q. 186, a. 3) postulates: poverty of spirit and detachment from temporal goods are the foundation of perfection, as they remove the obstacles that hinder the integral love of God. The true greatness of this young prince rested on the fact that he "could have transgressed and did not transgress", rejecting corruptible gold to fix his treasures in the Lord. The Introit gives us the key to this fidelity, declaring that the law of God was rooted in his inmost being, guiding his steps so that his justice would be acclaimed not by flattering courtiers, but by the eternal assembly of saints, who proclaim his alms and his unblemished life.
The organic synthesis between active vigilance and material detachment forms the unmistakable character of confessional holiness. The just man utters equity and wisdom precisely because his soul is not burdened by the false securities of riches, his will being purified and entirely directed toward the return of the Son of man. The life of Saint Casimir testifies that when the human heart empties itself of the idols of the world and fills itself with the law of God, existence is transformed into a continuous canticle of vigil, where the rejection of earthly honors becomes the condition for sitting at the celestial table, served by Christ Himself in eternal glory.