Ilmu/Kebatinan in silat/FMA

Just interested in hearing some opinions on this subject from different sources. Feel free to move the topic if it's in an inappropriate area of the forums.

Full disclosure. I'm a psychologist and come at the topic of spirituality in martial arts from a very skeptical/scientific viewpoint.

Some FMA and Silat schools delve very heavily into this topic. Personally, while I am open to people practicing the mystical beliefs of their choice, I'd rather keep my spirituality separate from my martial arts training. This was one of the reasons I sought out DBMA. All the schools local to me in Metro Detroit are very heavily influenced by a lot of Indonesian mysticism, and while I'm respectful, I just have no interest in it.

Just curious as to what other people think.