Religious symbolism of "The Twelve Days of Christmas"

True Love refers to God.

1. Partridge refers to Jesus
2. Turtle Doves refers to the Old and New Testaments
3. French Hens refers to Faith, Hope and Charity, the Theological Virtues
4. Calling Birds refers to the Four Gospels and/or the Four Evangelists
5. Golden Rings refers to the first Five Books of the Old Testament, the "Pentateuch", which gives the history of man's fall from grace.
6. Geese A-laying refers to the six days of creation
7. Swans A-swimming refers to the seven gifts of the Holy Spirit, the sacraments
8. Maids A-milking refers to the eight beatitudes
9. Ladies Dancing refers to the nine Fruits of the Holy Spirit
10. Lords A-leaping refers to the ten commandments
11. Pipers Piping refers to the eleven faithful apostles
12. Drummers Drumming refers to the points of doctrine in the Apostle's Creed 

(http://www.carols.org.uk)