The 3 hand positions (each have the same representations as in Kosho as well as a fourth representation):
KIGAN- represents the spirit
KAISHU- represents the mind
HOKEN- represents the body
The moon disc over the lotus (adopted from the Sankrit syllable "A" within the Shingon practice):
The moon symbolizes the pureheart that lies within a person
The lotus symbolizes the heart latent within a person trying to achieve enlightenment.
The BAI (Bhai) represents the Sanskrit symbol associated with Yakushi (medicine Buddha of Healing).
These links can help assist you in understanding history as it pertains to our dojoKempo facts
Kokoro Ryu Reiki