I tend to agree, most platitudes are less impactful simply because your mind inserts what it already knows/autocompletes the phrase meaning because it's something so commonly heard. I read it as something like... you have enough resources to lead a life that has prosperity relative to the limited faculties of a human organism. That seems less catchy, and if you're too literal in your phrasing in writing, then you get the opposite problem where the reader limits their thinking to just what is written. Do you come to a different conclusion?

This phrase comes up alot in mindfulness and self-esteem related writings. I interpret it to mean that you don't have to do anything to justify your existence on the planet or prove your worth. I agree with this. But the phrasing of "you are enough" implies that it is possible to not be enough, but I don't think that's true since there's no bar that you have to meet, you just are.