What are the Joyful Mysteries? Rev. Coerezza writes that the Rosary
consists of 150 Hail Marys, which with the recall the life (sic) of Our Lord in 15 mysteries, form a beautiful crown of praise to Jesus and Mary, His Mother. The first five mysteries are called "Joyful" : these show us the Virgin Mary as Mother of the Child Jesus.
The Five Mysteries are:
I. The Annunciation
"Surprise! You're pregnant!"
II. The Visitation of Our Blessed Lady to St. Elizabeth
As soon as Mary visited her pregnant cousin Elizabeth, the child in Elizabeth's womb was cleansed of Original Sin and Sanctified. He would grow up to be John the Baptist.
III. The Birth of Jesus in a Stable in Bethlehem
IV. The Presentation of the Child Jesus in the Temple
A man named Simeon made accurate predictions about the life of Christ, adding that sorrow was going to break Mary's heart, which is exactly what every new mother wants to hear.
V. The Finding of the Child Jesus in the Temple
I have to admit, I didn't know any of this. I had no idea there was a structure to the Rosary apart from certain beads meant Hail Mary's and certain ones meant Our Father's.