This could be a title
This is your caption's titleAnd this is the text that could accompany it. It is all optional so if you delete it in the Mantra Settings there will be no more caption with the black background.
And this is a second title
You can also have some text here. Just like with the slider, it's 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.
You can also have links
here as well as all other HTML tags
And here you could have a whole lot of text. Or not. It's 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 all HTML tags.
Just try everything out and see what suits you. Have fun and good luck!