Jisso Enman no Bokuto
On the Omote side of the bokuto is written Jisso Enman meaning the complete acceptance and appreciation of Musashi's Hyoho as it is. This includes the human relationship factor. On receiving this artifact it is a duty to promulgate the ryu as it is with no adaption.
On the ura is written Kanryu Tsuki Obi Kanryu. This is taken from the classical Chinese book called Byakurakuten.
In the book is a poem with these words. The poem tells us of the spirit and state of mind we should aquire in entering into conflict.