E. Crushing one’s ego and pride is the oil that fuels G-d’s revelation on the person:

Similar to the required crushing of the olive to facilitate the removal of its oil, is the required crushing of the animal soul, which refers to one’s ego and pride, in order to remove the oil of the soul. This crushing is accomplished first and foremost through the Divine service of Iskafya, to avoid fulfilling his passions and desires by viewing himself as unworthy to receive them. One is to view himself as the dregs and leftovers of the Jewish people and hence not feel worthy of receiving all of the benefit and pleasures that people lust for. This will quash his lusts and remove him needing to withhold himself from his passions, as he won’t feel a passion to begin with. Since he views himself as completely unworthy and irrelevant in the world and is as if the world does not need him at all then what to him and to the world, and therefore he will not desire not this world nor the next world. This type of contemplation and recognition of one’s true value crushes the ego and pride of the animal soul and draws down the infinite light of G-d onto the person, as G-d only resides and reveals Himself to one who is nullified to Him. This revelation of G-d that results after crushing the pride of the animal soul shines onto the aspect of oil or wisdom of the soul that is revealed after the animal soul is crushed, as the aspect of wisdom of the soul is its aspect of nullification and self effacement. Without this crushing of the animal soul, the revelation of the infinite light of G-d that can be elicited through fulfillment of Torah and Mitzvah’s, will not be able to stick onto the body, just as a flame will not remain on a wick unless there is oil. It’ll rather burn through the wick and then disappear. In order to keep the flame of the infinite light of G-d on the wick of one’s body and soul, one is required to crush the oil of Chochmah out from the body and soul through breaking its pride and ego. This is the meaning behind the statement of the sages that G-d cannot dwell within one who is arrogant and haughty, as they lack the oil to sustain the flame.