Minimal interfaces feel good because they reduce the work your brain has to do. When the structure is obvious, you can stop scanning and start reading. That reduction of effort is what people describe as elegance, even if they do not know why. It is not about removing details, it is about making sure every visible element has a clear job.
A simple layout does not mean a boring one. You can still have a strong personality by focusing on the few elements that matter most: typography, spacing, and rhythm. One bold typeface, one accent color, and a confident grid can carry a whole product identity. The trick is to avoid adding three different styles to solve one small problem; a single clear decision almost always looks better.
Minimalism is a default, not a destination. Start simple, then add only what improves understanding or confidence. When a design starts to feel busy, remove one layer, not five. That small discipline is how simple interfaces stay beautiful over time.