The path string in a path attribute is similar to a filesystem path or URL: a string of names with slashes (/) separating them. The last name is the name of the desired object, and the preceding names are the folders to traverse to find the object.
If the path begins with a slash, it is an absolute path. The search begins at the root folder of the publishing site:
path="/library/includes/music/symphony"
In this example, the site root folder is searched for a folder named "library". That folder is searched for a folder named "includes". That folder is searched for a folder named "music". That folder is searched for an object called "symphony", and that object is used by the tag.
If the path does not begin with a slash, it is a relative path. The search begins at the folder containing the template or content item in use:
path="show/public/navbar"
In this example, the current folder is searched for a folder named "show". That folder is searched for a folder named "public". That folder is searched for an object called "navbar", and that object is used by this tag.
IMPORTANT: Spaces or special characters in any of the folder names or object names must be represented by underscores (_) in the path:
path="Related_Templates/July_and_August/summer_festival"
Folder and template names are not case sensitive. The following example is equivalent to the previous path:
path="related_templates/July_And_August/SUMMER_FESTIVAL"
The special path component ".." (two periods, often called "dot-dot") refers to the folder above the current folder:
path='../../vegetables/onions'
In this example, start with the current folder, go to the folder containing it, go up again one folder, go down into the folder "vegetables", and then access the object called "onions".
Note: Since a root folder has no container, applying ".." to a root folder has the same effect as trying to access any folder that does not exist.