Lavan lähellä oli todella hyvä fiilis.

Because lähellä usually takes a noun in the genitive case.

• lava = stage
• lavan = of the stage / stage’s

So:

• lavan lähellä = near the stage

This is a very common Finnish pattern with postpositions (words like lähellä, takana, edessä, etc.), where the noun often comes before them in the genitive.

Lähellä means near or close to.

In this sentence, it works like a postposition, meaning it comes after the noun phrase:

• lavan lähellä = near the stage

It can also be used more independently:

• Se on lähellä. = It is nearby.

So here, lavan lähellä is a location phrase.

Finnish often puts the location or setting first, especially when introducing a situation or describing what was somewhere.

So this structure is very natural:

• Lavan lähellä oli todella hyvä fiilis.

It is similar to English:

• Near the stage, there was a really good vibe.

Finnish likes to present the scene first, then tell you what was there.

Because oli is the past tense of olla (to be).

• on = is
• oli = was

So:

• Lavan lähellä on todella hyvä fiilis. = There is a really good vibe near the stage.
• Lavan lähellä oli todella hyvä fiilis. = There was a really good vibe near the stage.

Finnish does not need a separate dummy word like English there in sentences like this.

English says:

• There was a good vibe near the stage.

Finnish simply says:

• Lavan lähellä oli hyvä fiilis.

The idea of there was is built into the sentence structure itself. This kind of sentence is often called an existential sentence: it tells you that something existed or was present somewhere.

That is very normal in Finnish existential/location sentences.

A common pattern is:

• [place] + [olla] + [thing/state]

For example:

• Pöydällä on kirja. = There is a book on the table.
• Lavan lähellä oli todella hyvä fiilis. = There was a really good vibe near the stage.

So fiilis comes after oli because the sentence is presenting what was present in that location.

Fiilis is an informal and very common word meaning:

• feeling
• vibe
• mood

In this sentence, vibe is probably the best fit.

It is not the most formal choice. In more formal or neutral Finnish, you might see words like:

• tunnelma = atmosphere, mood
• ilmapiiri = atmosphere, ambience

So:

• todella hyvä fiilis sounds natural and conversational
• todella hyvä tunnelma sounds a bit more standard or neutral

Because fiilis is the noun here, and hyvä agrees with it in the nominative singular:

• hyvä fiilis = a good vibe

In this kind of existential sentence, a singular noun like this is often in the nominative:

• Siellä oli hyvä fiilis. = There was a good vibe there.

So the adjective stays in the matching basic form:

• hyvä
  • fiilis

Todella is an adverb meaning really.

It modifies hyvä:

• hyvä = good
• todella hyvä = really good

So:

• todella hyvä fiilis = a really good vibe

Some similar words are:

• tosi = really, very (more informal)
• erittäin = very, extremely (more formal)

Examples:

• tosi hyvä fiilis = a really good vibe
• erittäin hyvä tunnelma = a very good atmosphere

A learner might wonder that, because -n can show up in different grammatical roles. But here, the important thing is that lavan is used because lähellä takes the genitive.

So in this sentence, you should understand lavan as:

• genitive singular of lava

That is the key reason for the form here.

Lava is quite a practical, physical word for a stage/platform, and it is very natural for things like:

• concert stages
• festival stages
• outdoor stages
• dance stages

If you specifically mean a more theatrical stage, näyttämö may also be used.

So in a concert or event context, lavan lähellä sounds completely natural.

Yes, but the given word order is the most natural one for this meaning.

The basic neutral version is:

• Lavan lähellä oli todella hyvä fiilis.

You could move things around for emphasis, but then the tone changes. Finnish word order is flexible, yet not random.

For example, if you emphasize fiilis, you might get a more marked sentence. For an ordinary statement, the original order is the best one.

Structurally, it is closer to:

• There was a really good vibe near the stage

That is because Finnish is using an existential-style pattern:

• location first
• then oli
• then what existed there

If Finnish wanted to sound more like The vibe near the stage was really good, it would usually be built differently. So the current sentence is not just about describing a known subject; it is more about presenting what the atmosphere was like in that place.