Behaalotecha (When You Raise) the Lamps

Numbers 8:1 And יהוה spoke to Moses saying, 2 Speak to Aaron וְאמַרְת and you say to him, when you light את־ the lamps, the seven lamps will cast their light forward in front of the menorah. 3 And Aaron did so; he lit its lamps so as to give light in front of the menorah as commanded יהוה את־ Moses. 4 And this is how the menorah was made: it was beaten gold from the shaft to the flowers, beaten work: according to the pattern which יהוה את־ Moses was shown, so he made את־ the menorah. C-MATS

Question: Why is this passage regarding the Menorah placed immediately after the long narration of the offerings of the tribal leaders? Aaron was bothered that every tribe, represented by its leader, had a role in dedicating the new Tabernacle, while he and his tribe of Levi were excluded. Consequently, יהוה comforted him by saying that his service was greater than theirs because he would prepare and kindle the Menorah. Chumash

Question: What does it mean And Aaron did so”? What does this teach us?  Aaron, as Kohen Gadol, kindled the menorah the entire 40 years that the Tabernacle was in the wilderness. A person naturally does something the first time with more dedication and excitement than after he has done it for several years. In his praise, the Torah says that Aaron did not change: Even after kindling the menorah for many years, he continued to do so with the same dedication, fervor, and excitement as the first time. This teaches us that no matter what task יהוה gives us, we must do it with dedication and fervor as unto יהוה. And whatsoever you do, do it heartily, as to יהוה, and not unto men; knowing that of יהוה you shall receive the reward of the inheritance: for you serve Adonai the Mashiach. Colossians 3:23-24 C-MATS