Sesshin means to "unify the mind" and is a traditional, intensive pract-ice period in Zen where one will sit for up to 10 hours a day. To partic-ipate in this demanding regimen takes long training and is for the more experienced sitter. If you want to apply to a sesshin you will have to contact the center at least one month beforehand. Sesshins are led by Sante-sensei or Kanja-sensei. Schedule!