What is Elasticsearch instance?

I want to know what this Elasticsearch instance is! there is no proper documentation for beginners in Windows, and that is why we are asking so many questions!

https://www.elastic.co/guide/en/kibana/current/setup.html

URL of the Elasticsearch instance you want to connect to.

What is this url and Elasticsearch instance? Please provide a sample.

localhost:9200

OK, I will try that.

I have found it, do I need to uncomment it for it to work? Here is what I found

     # The Elasticsearch instance to use for all your queries.
     # elasticsearch.url: "http://localhost:9200"

If you answer this I will now go offline!

Please reply then I go!

It is now saying this:

  C:\elasticsearch-2.1.0\kibana-4.3.0-windows\bin>kibana.bat
  INFO: Could not find files for the given pattern(s).

The full details are here:

C:\elasticsearch-2.1.0\kibana-4.3.0-windows\bin>kibana.bat

INFO: Could not find files for the given pattern(s).
log   [01:30:51.124] [info][status][plugin:kibana] Status changed from uninitialized to green - Ready
log   [01:30:51.296] [info][status][plugin:elasticsearch] Status changed from uninitialized to yellow - Waitin
log   [01:30:51.369] [info][status][plugin:kbn_vislib_vis_types] Status changed from uninitialized to green -
log   [01:30:51.395] [info][status][plugin:markdown_vis] Status changed from uninitialized to green - Ready
log   [01:30:51.424] [info][status][plugin:metric_vis] Status changed from uninitialized to green - Ready
log   [01:30:51.442] [info][status][plugin:spyModes] Status changed from uninitialized to green - Ready
log   [01:30:51.458] [info][status][plugin:statusPage] Status changed from uninitialized to green - Ready
log   [01:30:51.476] [info][status][plugin:table_vis] Status changed from uninitialized to green - Ready
log   [01:30:51.641] [info][listening] Server running at http://0.0.0.0:5601
log   [01:30:52.488] [error][elasticsearch] Request error, retrying -- connect ECONNREFUSED
log   [01:30:52.830] [error][status][plugin:elasticsearch] Status changed from yellow to red - Request Timeout

^CTerminate batch job (Y/N)? y

Make sure Elasticsearch is running (download it and doubleclick bin/elasticsearch.bat), then visit http://localhost:5601/ in a browser.

It appears to work after it gives me this error:

  INFO: Could not find files for the given pattern(s).

Here is the process:

C:\elasticsearch-2.1.0\bin>service start
 The service 'elasticsearch-service-x86' has been started

 C:\elasticsearch-2.1.0\bin>

Kibana is loading well from the browser, I can tell you am having a great experience.

   http://localhost:5601/

Is Kibana somehow connected to Hawaii?