I find that most things that were considered 'supernatural' in the day, have become part of science these days and are very natural. Hypnosis is an example. Bacteria is another. As science progresses, they discover that many of the things considered supernatural and magical are in fact natural processes, things we just hadn't figured out yet.
And we'd be arrogant to think that we've discovered everything by now. So yeah..feel free to keep calling those things supernatural. Just know that others consider them very much natural.