In 1996, Dr. Royji Yokyama performed a makiwara sharei at the University of California at Irvine. Yoshiko and I assisted Dr. Yokoyama in performing the sharei and later Dr. Yokoyama and I exchanged letters where he answered some of my questions about the relationship between Shinto and kyudo. Mr. Stephen Selby has the letters on his web page and you can read the lengthy exchange on
Mr. Selby's website.
this downloadable microsoft word document