RAV KOOK ON Tetzaveh Paart 2: Raising a Constant Flame

Not just any oil was suitable for use in the Temple Menorah. The Torah stipulates that the oil be particularly refined, made from hand-crushed olives, so that it will “raise up a constant flame” (Ex. 27:20). Why does the Torah use this unusual phrase, “to raise up the flame"? Why not say simply “to kindle the flame"?