“You will kindle and prepare the lamps.” – Tanchuma Behalotecha 3
When Aaron grew concerned, that the leaders of the twelve tribes of Israel brought offerings to inaugarate the Mishkan, yet, he was not called to contribute in like manner, H’Shem told him that he would have a greater responsibility. He was placed in charge of lighting the menorah that rested in the Mishkan. This would be a detailed procedure that culminated in the light of the menorah being kept lit during the night, and foreshadow the role of his descendants, who rededicated the Temple, after its near destruction by the Hellenists; hence, the celebration of Chanukah every year, even unto this day and age.
According to the Talmud, ‘He is required to light the lamp until the flame rises by itself” (Shabbat 21a). Thus, he had to make sure that each wick was lit well enough, that the flame would continue to grow, until it remained steady on its own. A lesson is mentioned in commentary, concerning this commandment, that the same is true for ourselves, when we help others. We must make sure to properly guide others, in order for them to continue to grow spiritually on their own.
Aaron would also clean out the menorah, preparing it to be lit again each and every day. Another lesson, for ourselves, to keep in mind, is that everyday, we must clean out the “soot and ash,” figuratively speaking, in our own lives. This was one of the tasks of Aaron, necessary, before placing the new wicks in each lamp, and lighting the Menorah. To keep the light glowing in our lives, we must also prepare ourselves everyday to receive that light from H’Shem. We are each a light sent by G-d into this world, that we may also light up the lives of others.