Feng Shui is actually playing around with the law of the world or nature, everyone has to play by their rules, you can't change the rules, but you can play around it. That's where feng shui comes in.

ps. Lilian Too crap is bullshit

For the detection part, i have no idea, maybe something to do with the compass thingy. The waves are everywhere, but actually every energy has an effect on humans, it is just the matter of knowing it and using it.

Going along, nulify, it is kinda like playing around with the forces, you use it depending on the guy. It is like playing around with the forces