蓋,指貪慾等五蓋(梵 pañca āvaranāni),即五種覆障心性之煩惱;或泛指諸煩惱。離蓋,即謂脫離煩惱而得清淨。[無量壽經卷下、大毗婆沙論卷四十八] p6718