RAV KOOK ON Beha'alotecha Part 1: The Seven Lamps of the Menorah

Speak to Aaron and tell him, ‘When you light the lamps, the seven lamps should shine towards the center of the Menorah.'” (Num. 8:2) Menorah Why does the Torah emphasize this particular detail — that the seven lamps should face the center of the Menorah? Why not begin with the overall mitzvah — to light the Menorah each evening? Also, what is the significance of the Menorah’s seven branches?