The answer
Every month is sanctified by our monthly commemoration of St. Mary the Mother of God, the Theotokos, on the 21st of each Coptic month. We look up to St. Mary as a living role model for the faithful and the First Citizen of the Church of the Lord Christ, learning from her to live as those who carry the Lord Christ wherever they go; He who establishes His kingdom in our depths.
On the 29th of every Coptic month, we commemorate the annunciation, nativity [or Christmas], and resurrection of Christ (except for the months of Tobe and Meshir). With these commemorations, the believer is dissolved into love through his union with the Savior every hour, every day, every week, and every month.
And we commemorate the chief of the army of the Lord, Archangel Michael, every 12th day of the Coptic month. Thus, the believer feels that he is a good soldier of our Lord Jesus (2 Tim. 2:3) and that he has joined the ranks of the heavenly powers.
This is the happiness of the believer and his continual joy on a daily, weekly, monthly, and annual basis.
Fr. Tadros Yacoub Malaty