A guide consists of several components. The following graphic shows the simple structure of the relationships between the individual components.
A facet is a data block that is used to define the filter properties.
A filter defines the various options available to the user. Each selection option has one or more facets as filter property.
The guide is the actual entity that is displayed on the web page. A guide consists of one or more filters.
A design defines the appearance of a guide in the frontend of the website. A design can be used by several guides.
With the help of logic, filters can be hidden based on the selection of users.
A template determines the design of the results.
As you can see on the graphic, filters are first required to create a guide. But to create a filter, you need facets. How to create facets is shown in the documentation about facets.