This is the rank where Bosatsu tries to relieve the living things in order to complete more altruistic training after getting a certification (印可) as a Buddhist (仏子) at the end of Juju.
菩薩が、十住位の終に仏子たる印可を得た後、更に進んで利他の修行を完うせん為に衆生を済度することに努める位。