The problem is that it feels like voodoo to me.
Clarke's Third Law :-)
Anyway, you gain understanding of complicated techniques by studying them and practicing them. You won't understand them unless you study them -- so I'm not sure why you are complaining about lack of understanding before even trying.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.