Re: I offer that Indigo's are INFX. Purpose.
Yes, I misapplied the term. I stand corrected. They suffer from both.
A high pitched sound can be objectively measured, by machine or by gauging/training other dogs to alert at the sound. It is how we train tracking and scent discrimination. This why dog trainers test, to see if the dog is actually working or just pretending to be tracking.
This 'ability' to see angels, also requires the existence of angel, and all the theology and assumptions that go along with it. It would also require a whole new model of vision. You would also have to explain why these angels do not show up in pictures or film/camcorder. Except for fuzzy/blurry images that allow the believer to see what they want.
Some of the other claims regarding Yan Xin Qigong, are nothing more than fables. I do not measure the existence of things on my abilities, but on objective data. And lowering a heart's BPM is no great feat, it can easily be taught.