Vimos un haz de luz.

Vimos is the preterite form of ver (to see) for nosotros/nosotras:

• yo vi
• tú viste
• él/ella vio
• nosotros/nosotras vimos
• vosotros/vosotras visteis
• ellos/ellas vieron

So vimos means we saw.

Spanish often leaves out the subject pronoun, so Nosotros vimos un haz de luz and Vimos un haz de luz both mean the same thing. The pronoun is usually omitted unless you want emphasis or contrast.

Because vimos is the preterite, which presents the action as a completed event:

• Vimos un haz de luz. = We saw a beam of light.

If you said veíamos, that would be the imperfect, which suggests an ongoing, repeated, or background action:

• Veíamos un haz de luz. = We were seeing / used to see a beam of light

In this sentence, the idea is a single completed event, so vimos is the natural choice.

Yes. Ver is irregular in the preterite.

Its preterite forms are:

• vi
• viste
• vio
• vimos
• visteis
• vieron

A useful thing to notice: although the verb is irregular overall, vimos looks fairly simple. Also, unlike many preterite forms, vi and vio do not take accent marks.

Here, haz is a noun meaning beam, ray, or shaft of light.

So:

• un haz de luz = a beam of light

It is a fairly literary or descriptive word, but it is completely correct and natural. You may also hear rayo de luz, which is often more common in everyday speech.

In this sentence, haz is a masculine noun, so it takes un:

• un haz de luz

This is worth noticing because haz can be confusing: Spanish has different words spelled haz, and they do not all behave the same way.

Here it means beam/bundle, and that noun is masculine.

In standard Peninsular Spanish, z is pronounced like the th in thin.

So haz is pronounced roughly like:

• ath

More accurately: /aθ/

So the whole phrase sounds approximately like:

• Vimos un ath de luth

That last part reflects standard central/northern Spain pronunciation, where z in luz is also /θ/.

Yes, and that is a very common source of confusion.

Haz can also be the tú imperative of hacer:

• Haz la tarea. = Do the homework.

But in Vimos un haz de luz, haz is clearly a noun, not a verb, because it comes after un:

• un haz = a beam

So context tells you which haz it is.

De here means of, so de luz means of light.

The structure is very common in Spanish:

• un vaso de agua = a glass of water
• una taza de café = a cup of coffee
• un haz de luz = a beam of light

So de links the main noun (haz) with what it consists of or what kind it is (luz).

Because in Spanish, after a structure like un haz de..., the second noun often appears without an article when it is being used in a general descriptive way.

So:

• un haz de luz = a beam of light

not usually

• un haz de la luz

La luz would sound more specific, as if you meant the light in a particular context.

Yes, but Vimos un haz de luz is the most neutral and natural order.

Spanish usually prefers:

• verb + object here

You could change the order for style or emphasis, but it would sound less neutral:

• Un haz de luz vimos.

That might sound literary, poetic, or strongly focused on un haz de luz.

For everyday Spanish, Vimos un haz de luz is the best choice.

Yes. Un rayo de luz is also correct and often more common in everyday Spanish.

Very roughly:

• haz de luz = beam/shaft of light
• rayo de luz = ray of light

In many contexts they overlap a lot, but haz can sound a bit more descriptive or literary, while rayo may feel more familiar to learners and more common in ordinary use.

Usually no.

Spanish normally drops subject pronouns when the verb form already makes the subject clear. Since vimos clearly means we saw, nosotros is unnecessary.

• Vimos un haz de luz. = normal
• Nosotros vimos un haz de luz. = possible, but more emphatic

You might include nosotros if you want contrast:

• Nosotros vimos un haz de luz, pero ellos no.

The sentence itself is valid in Spanish generally, not only in Spain. But the main Spain-specific point is the pronunciation:

• In Spain, z in haz and luz is typically pronounced /θ/
• In most of Latin America, it is pronounced like s

So in much of Latin America:

• haz sounds like as
• luz sounds like lus

The grammar and meaning stay the same.