The K(h)echari Mudra is a yoga position in which the tongue is placed back and up the nasal cavity. It is believed to have many positive effects but ordinarily cannot
be achieved without cutting the frenulum linguae, or lower tendon of the tongue, so that the tongue can actually extend back and up into the root of the nasal cavity.
This is not something to be done lightly and was never recommended in Divine Light Mission as it was claimed that with continual practice it could be achieved
and the Divine Nectar could then be drunk. I have never heard of any follower of Prem Rawat's achieving this and he made it redundant in 1987 when he defined the 4th technique,
no longer to be called the Divine Nectar, to be the nabho mudra as it only requires turning the underside of the tongue up; press it against the hard palate; extend the tip of the tongue back towards the soft palate. Michio Kushi taught a similar technique in The Book of Do-In.
These positions are considered by some to be amongst the deepest esoteric, spiritual knowledge known to man and by others to be complete nonsense. It is unlikely that Rawat ever learnt (and certainly never practised) any of the yoga on which the meditation techniques his father taught were based. He has disparaged other theories as riff-raff, admits he cannot understand kundalini or chakras and says the basic meditation techniques he teaches are Raj Yoga, "the King of all Yogas", The Yoga of all the yogas. The Knowledge of all the knowledges.
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