5 ways to meditate on the Passion
I found these from the Navarre Bible-St John (pg. 215-216). They are perfect for the sorrowful mysteries.
1. meditating on our sins and how Jesus suffered for them
2. meditate on Jesus virtues...his great humility, gentleness, silence and the other virtues
3. meditate how how much He loves us, how much he gave us and how much it cost Him to do so
4. meditate on God's great goodness, his mercy, his justice, kindness, and charity.
5. mediate on the wisdom of God in choosing this manner of atoning for mankind.