In the Treasury of Canterbury Cathedral are a Chalice and Paten which were buried with Hubert Walter, Archbishop of Canterbury 1193-1205. The paten bears an inscription which perfectly exemplifies the attitude Latin Christians had towards the Blessed Sacramnent before the Eucharistic Enlightenment for which Pope John XXII was responsible: they believed that the Sacrament is the Body and Blood of Christ ... the dead Body and blood of Christ.
Ara crucis, tumulique calix, lapidisque patena,
Sindonis officium candida byssus habet.
As your knowledge of Latin grows, you will find it helpful to try to translate Latin which you may come across. People who think they can get a 'sort of general sense', perhaps by looking up a word or two in a dictionary, are ... let me be brutally frank ... complete fools. Latin word-order and grammar mean that the words will be in a word-order totally different from English. If you don't know grammar, you will be unable to work out whether the cat bit the dog, or the dog bit the cat.
And word order is even more (to the Anglophone eye) problematic in verse than it is in prose.
What I have printed above is an elegiac couplet, which is a verse form. One way of suspecting this is: if the even-numbered lines are shorter and end in the rhythm tumtitty tumtitty tum.
First you need to spot the verb. Here it is habet. Next, what is the subject? When you have got your declensions learned off by heart, you will probably cotton on to the fact that Ara, calix, patena, byssus, are all subjects, in what is called the Nominative Case. Crucis, tumuli, lapidis, sindonis, are genitives (meaning "of").
Next ... if the verb has an object, what is it?
So, with English-style word-order, we can rearrange the two lines into
Ara habet officium crucis, calix habet officium tumuli, patena habet officium lapidis, candida byssus habet officium sindonis.
Which is, in English
The Altar has the job of the Cross, and the Chalice has the job of the Tomb, and the Paten has the job of the Stone, and white linen has the job of the Shroud.
Alluding, all of it, to the dead and buried Jesus. And to the Altar, Chalice, Paten, and Purificator at Mass.
Hey, er, presto ...