Illa magistro epistulam ostendit, quia consilium accipere vult.

Illa is a feminine nominative singular form of ille, illa, illud.

In a sentence like this, it can function as:

• a demonstrative pronoun: that woman / that girl
• or, in many classroom translations, simply she

So grammatically it is a little stronger than an unstated subject. Latin often leaves the subject pronoun out, so using illa can add a bit of emphasis or point someone out more clearly.

Magistro is dative singular, and here it is the indirect object.

With ostendere (to show), Latin commonly uses:

• the thing shown in the accusative
• the person shown to in the dative

So:

• epistulam = the letter
• magistro = to the teacher

That is why magistro is dative.

Because it is the direct object of ostendit.

The verb ostendere means to show, and the direct object is the thing being shown. Here, that thing is the letter, so Latin puts epistula into the accusative singular: epistulam.

Because Latin usually expresses that idea with case endings instead of a separate word.

In English, we say:

• to the teacher

In Latin, the ending -o in magistro already tells you it is dative, which often means:

• to the teacher
• for the teacher

So the idea of to is built into the form itself.

Because it depends on vult.

Vult means he/she wants, and verbs like want are commonly followed by an infinitive in both Latin and English:

• She wants to receive
• vult accipere

So:

• vult = the main verb
• accipere = the infinitive completing its meaning

This is called a complementary infinitive.

The subject of accipere is understood to be the same as the subject of vult, namely illa.

So the meaning is:

• She wants to receive advice

not:

• She wants someone else to receive advice

If Latin wanted a different subject for the infinitive, it would usually use a different construction.

Yes, consilium can mean several related things, including:

• plan
• advice
• counsel
• decision

Its exact meaning depends on context.

In this sentence, with accipere and the overall sense, advice or counsel is the most natural meaning. So consilium accipere here means something like to receive advice.

Formally, ostendit can be ambiguous:

• present: she shows
• perfect: she showed / has shown

That happens because some third-conjugation verbs have identical-looking forms in the 3rd person singular present and perfect.

So context has to decide the meaning.

In this sentence, if the given translation is present, then you should understand it as:

• she shows

But it is useful to know that the form itself can also be read as perfect in another context.

Because quia usually introduces a straightforward statement of reason, and in that use Latin normally takes the indicative.

So:

• quia consilium accipere vult means
• because she wants to receive advice

This is presented as a real reason, not as a doubtful, imagined, or purpose idea.

Yes, Latin word order is much more flexible than English word order because the endings show the grammatical roles.

Here:

• Illa is the subject
• magistro is the indirect object
• epistulam is the direct object
• ostendit is the verb

Even if you changed the order, the endings would still show who is doing what.

This sentence uses a very natural order, but Latin could also say, for example:

• Illa epistulam magistro ostendit
• Epistulam illa magistro ostendit

The meaning stays basically the same, though the emphasis may shift.

Because Classical Latin does not have definite or indefinite articles like English the or a/an.

So:

• magister can mean teacher or the teacher
• epistula can mean a letter or the letter

The context tells you which English article makes the most sense.

Vult comes from the irregular verb volo, velle, volui, meaning to want.

Some common forms are:

• volo = I want
• vis = you want
• vult = he/she/it wants
• volumus = we want
• vultis = you all want
• volunt = they want

So in this sentence, vult means she wants.

In isolation, the dative can sometimes be translated either way. But with ostendere, the natural meaning is to the teacher:

• She shows the letter to the teacher

That is the normal sense of the dative with this verb.