Depends on the person, I would guess. I don't think there's a specific answer.
I believe this is a metaphor, as it refers to one thing in order to show or suggest they are similar. The phrase means that, as how a desert can survive winds and remain steady, so is their love for each-other. No matter what happens, Fatima and Santiago’s love will forever be true-hearted and faithful. Hope this helps!
The inverted pyramid is a metaphor used by journalists and other writers to illustrate how information should be prioritized and structured in a text (e.g., a news report). It is a common method for writing news stories (and has adaptability to other kinds of texts, e.g., blogs and editorial columns). This is the best way to understand the basics about a news report. It is widely taught to mass communication and journalism students, and is systematically used in Anglophone media.The "inverted" or upside-down "pyramid" can be thought of as a simple triangle with one side drawn horizontally at the top and the body pointing down. The widest part at the top represents the most substantial, interesting, and important information the writer means to convey, illustrating that this kind of material should head the article, while the tapering lower portion illustrates that other material should follow in order of diminishing importance.