As a human being, one has been endowed with just enough intelligence to be able to see clearly how utterly inadequate that intelligence is when confronted with what exists.
You intentionally start small, because you will not be able to compete with an incumbent... because the incumbent is always going to go for the full solution.
He had always known what I did not know and what, when I learned it, I was always able to forget. But I did not know that then, although I learned it later.
So the bodhisattva saves all beings, not by preaching sermons to them, but by showing them that they are delivered, they are liberated, by the act of not being able to stop changing.