And it was when they brought out those kings to Joshua, that Joshua called for all the men of Israel, and said to the chiefs of the men of war that went with him, Come near, put your feet upon the necks of these kings. And they came near, and put their feet upon their necks.
And Joshua said to them, Fear not, nor be dismayed, be strong and of good courage, for thus shall the Lord do to all your enemies against whom you fight. (Joshua 10:24-10-25)
“Putting your feet upon the necks of these kings” means mastering these desires for the sake of bestowal, for the sake of serving the Creator. This means that you put yourself above others because you can control egoistic desires, and this is not easy. In this way you conquer the egoistic steps.
Question: Is this close to what Kabbalah says that the upper extends his part down to the lower?
Answer: No, there we are talking about cooperation in order to raise the lower one to the next level, and here it is about suppressing egoistic desires.
There are four types of mortification of egoism, which depend on the level of egoistic desire, and each of the four levels needs to be corrected.
From KabTV’s “Secrets of the Eternal Book” 7/26/21