By analogy, think of those who are embedded in the husk of their inborn desire to receive. They never attempt to obtain the special “spices” of Torah and practical mitzvot, which are capable of breaking through the hard husk and transforming them into a desire to give satisfaction to the Creator. They are the ones who feel compelled to claim that humans are worthless and nothing – for that is what they truly are.
They cannot even consider the possibility that all of creation is for their sake. Were they dedicated to Torah and mitzvot in order to give satisfaction to their Creator with all of the proper purity, they would be able to break through the husk of the inborn desire to receive and replace it with a desire to give. Immediately, their eyes would be opened. They would see and appreciate themselves and all of the lofty levels of clear wisdom, understanding, and knowledge, which are soul-endingly beautiful and pleasant and which are prepared for them in the spiritual worlds.
Then they would themselves agree with the statement of the Sages: “A good guest, what does he say? How much effort did the host expend on my behalf” (Berakhot 58a).