רבינו בחיי — בהעלותך את הנרות

Q — The midrash reads behaaloscha as "raising" rather than "lighting". But Hashem doesn't need our light — what is being elevated?

A — Rabbeinu Bachya draws the answer from a remarkable architectural detail of the Beis HaMikdash. Ordinary buildings have windows that are narrow on the outside and wide on the inside — funnel-shaped to gather sunlight from outdoors and disperse it into the room. Shlomo built the Mikdash with the geometry reversed: narrow inside, wide outside (חלוני שקופים אטומים — "שקופים" pointing out, "אטומים/closed" pointing in). Why? Because the Mikdash does not need to admit light; it *emits* it. The flow is outward. So too the menorah: a single small light kindled by Aharon inside the Heichal radiates outward to the world, raising up (לעלוית) Klal Yisrael in the eyes of the nations who see that the eternal Light deigns to be lit by their hands. The Beis HaMikdash, by its very window design, declares itself a source, not a sink.