There are five mysteries of light aka luminous mysteries.
1st Luminous Mystery
The Baptism in the Jordan
2nd Luminous Mystery
The Wedding at Cana
3rd Luminous Mystery
The Proclamation of the Kingdom
4th Luminous Mystery
The Transfiguration
5th Luminous Mystery
The Institution of the Eucharist
In his Apostolic Letter on the "Rosary of the Virgin Mary" (Rosarium Virginis Mariae), published on Oct. 16, 2002, Pope John Paul II gave us five new mysteries of the Rosary, the Mysteries of Light, or the Luminous Mysteries. He explained in paragraph 19:
In the course of those mysteries we contemplate important aspects of the person of Christ as the definitive revelation of God. Declared the beloved Son of the Father at the Baptism in the Jordan, Christ is the one who announces the coming of the Kingdom, bears witness to it in his works and proclaims its demands. It is during the years of his public ministry that the mystery of Christ is most evidently a mystery of light: "While I am in the world, I am the light of the world" (John 9:5).
Knowing that He would soon ascend to heaven, Jesus passed these mysteries onto us (cf. Matthew 5:14-16). He said:
"You are the light of the world. A city set on a mountain cannot be hidden. Nor do they light a lamp and then put it under a bushel basket; it is set on a lampstand, where it gives light to all in the house. Just so, your light must shine before others, that they may see your good deeds and glorify your heavenly Father."
The pope, in quoting Blessed Bartolo Longo (see para. 15), inspires us to remember as we pray through the mysteries of the life of Christ that the Rosary should transform us, conforming us more into the likeness of Christ. The mysteries of the Rosary describe our own spiritual journey:
"Just as two friends, frequently in each other's company, tend to develop similar habits, so too, by holding familiar converse with Jesus and the Blessed Virgin, by meditating on the mysteries of the Rosary and by living the same life in Holy Communion, we can become, to the extent of our lowliness, similar to them and can learn from these supreme models a life of humility, poverty, hiddenness, patience and perfection". (I Quindici Sabati del Santissimo Rosario, 27th ed., Pompei, 1916, 27.)
Therefore, this Rosary for the Conversion of the World, includes prayers and scriptures that will lead us on the journey of holiness, burning out our impurities with the flame of Christ so that He shines more brightly within us. The conversion of the world occurs one person at a time, beginning with each one of us who take this prayer seriously. As the light of Christ within us glows brighter, the darkness in the world around us diminishes. Gradually, our world is consumed by Christ. It starts with us and spreads. As we are converted by meditating on and learning from the life of Christ, so too is the world converted.
Please also pray this Rosary to intercede for others, significantly for those you know who need the light of Christ to drive out their darkness, and likewise for the whole world. As Pope John Paul II wrote in his apostolic letter:
"The Church has always attributed particular efficacy to this prayer, entrusting to the Rosary ... the most difficult problems. At times when Christianity itself seemed under threat, its deliverance was attributed to the power of this prayer, and Our Lady of the Rosary was acclaimed as the one whose intercession brought salvation." (para. 39)
http://gnm.org/prayers/light/You were Catholic before right? Prayed the rosary before?