M. Weisman, “The Midrash Says,” Chapter “Shemini”: When Aaron understood that his sons’ punishment was a sign of an unprecedented, special honor, he stopped crying and accepted the Creator’s judgment in his heart, and the Creator rewarded him for his self-sacrifice by starting to talk to him, although He usually turned only to Moses.
There are several types of spiritual contacts: a thought that is perceived from a distance, a conversation (exchanging information), or a mutual action. Here, it is about Aaron’s ascent to the next level, thanks to his sons.
On the whole, we should understand that Aaron’s sons are actions that take place in the one single desire.
I find it very hard to speak about this since I constantly have to translate my explanations to discrete states for different souls, for different people. However, all this actually doesn’t exist! It is only about clarifications in the one, unique desire of the one, unique Creator.
From KabTV’s “Secrets of the Eternal Book” 1/22/14