Right now Kibana is pointing at the special Elasticsearch index _all. Think of _all as a composite index that points at all of your indices. Right now you only have one, shakespeare, but you might have more someday and we don’t want Kibana searching all of that data if you’re only looking for your favorite line from Macbeth.

To configure the index click the configure icon in the top right:

From here, you can set your index to shakespeare and ensure that Kibana only searches the shakespeare index