Google kechari...spelled in different ways...and it is not 'strange', btw.
Often, a doctor will have to bring the tongue of a newborn out..
because it is in this position with the tongue straight up behind the uvula.
Crying baby ? Place on drop of honey on it's tongue, bec it will
remind him of the Divine Nectar he was used to.
Paramahansa Yogananda deleted this technique from his initiations
of Kriya Yoga...he thought it too much for Westerners back in the day...
as he thought a lotus position was too much so taught to sit
in a chair, keeping the spine erect....sitting on wool.
But, it was part of Babaji and Lahiri's and Sri Yukteswar's original
initiations revealing 4 esoteric techniques.
You can ask devotees of 20 years and they know nothing about this 4th technique
involving the tongue...it may be mentioned to place the tongue on the roof of the mouth...
but that is a pale remnant of the orig process.
You can also sit for years doing this technique...but it is only
by the Grace of God that Nectar will flow...often translated by
Eastern masters as the Manna from Heaven of the Jews...and the
real teaching of the 'living waters' offered to the woman at the well.
Living waters is mentioned often in the Bible.
Also, claimed to be the true original meaning of the mythical Fountain of youth.
A friend, hospitalized healed his burns phenomenally fast due to placing Nectar on his
severe burns...amazing the MDs. I was there...it really happened.