DaVigil Code—November/December clue

This clue appeard in the November/December issue of Today's Parish Minister.

The key to this clue is "Caesar" and "His box." If you Google "Caesar's box," you'll learn that it is a cipher supposedly invented by Julius Caesar. The cipher works by rearranging the letters of a secret message vertically and breaking the columns in such a way as to from a perfect square or box. So, if you spell out the first column of the box above horizontally, you will read:

Sacra

Continue on in the same fashion, and the entire text reads:

Sacramentary Easter Season nmbr. 8

If you flip open a sacramentary to the section titled "Easter Season," and then find the paragraph numbered "8," you will read:

Dear friends in Christ, on this most holy night, when our Lord Jesus Christ passed from death to life, the Church invites her children throughout the world to come together in vigil and prayer. This is the passover of the Lord: if we honor the memory of his death and resurrection by hearing his word and celebrating his mysteries, then we may be confident that we shall share his victory over death and live with him for ever in God.

If you know which night the text refers to, you are closer to finding the church's hidden treasure. Stay tuned for more clues.