You can also have some text here. Just like with the slider, it is all optional (including the title and the link inputs). All you need is an image, unless you want the Mantra image above to follow you everywhere.
And here you could have a whole lot of text. Or not. It is all up to you. Deleting all text inside the appropriate input in the Mantra Settings will remove this whole text zone. It can also contain some HTML tags. Just try everything out and see what suits you. Have fun and good luck!