John Hayward ji thanks for your post. If "Kechri Mudra" relates to a physical action of stretching your tongue towards th ephalynx, then that action is quite common in Grand Mal seizures. I wonder if t hose people experience the benefits of opening of so called "dasam dawar"/"tenth gate".
Yo don't need to close your eyes to see the inside; you don't need to chant to reach the hard of hearing (God/Creator, etc.); you don't need to hold your breath to silence your inners; you don't need to levitate to touch nothing and you don't need to hold your nose to stop smelling. It is within you! Rest are fads, gimmicks and exploitation of the vulnerable.
Let it not stop anyone from these things in case they find a benefit.
Regards.
PS: My gut feeling is that it is a robot post
. Perhaps the Admins can look into it.