Gou Founded an Immortal Dynasty in Another World

I, a time traveler from the earth, want to create an unprecedented immortal dynasty in this world of immortality. Don't rely on blood, don't worship gods and Buddhas. What I brought is the earth's mutated fairy grass, a "textbook" for children to develop wisdom, and a "food" for all people to have strength. The monks regard me as a heretic because I passed down the "assembly line" so that magic pills and elixirs can be produced like cabbage. The nobles regard me as their mortal enemy because I say that all immortals are equal. They laugh at the fact that the foundation of my immortal dynasty is made of soil, bricks and tiles, and is made of ordinary people. But I don't know that I come from another world, with fairy grass and technology. When my dynasty comes to a successful conclusion and the troops are arrayed in the sky. Only then did the entire world of cultivators understand: What I created was more than just an immortal dynasty. What I overturned was an entire old era.