She was once Beru Skywalker, Anikins sister. She was never trained, but is force sensitive and can see things before they happen. She married Owen Lars who never agreed with such “wizardry”.
Watch the films with this in mind and it works just as well as Obi-Wan’s twisting the truth to Luke. For me, it makes the entire backstory more interesting as both Owen and Beru would be strongly connected to and involved with the plot of the PT. It would give an opportunity for a good female character and much better relationship dynamics.
They’re both just boring farmers that wore the same clothes for 25 years and aged four decades in a little over two. According to the PT that is.