 Purity of vision , " external and internal " , disciplining the thoughts and imagination to reject those that are impure . 
 Purity of vision , " external and internal " , disciplining the thoughts and imagination to reject those <a href='null_relcl' title='1'><mark>that</mark></a><a href='drop_aux' title='2'><mark>are</mark></a>impure . 
Purity of vision , " external and internal " , disciplining the thoughts and imagination to reject those impure .