We have beautiful bright stars in the crisp cool sky. We may see them on a ship in the great ocean or a boat in the fast rapids. Dogen told a story: a man dropped his stuff into water. He said, “I dropped my stuff here” He pointed the mark he cut on the boat-side.
We may see the world in the tread wheels like hamsters. We may see all kinds of worlds, boats, wheels with delusion and discrimination. We can cut marks of money, matter, etc. on our fleeting life boats. Our worlds depend on how we see our worlds and our minds.
Unless we see the true nature of our worlds and minds, we transmigrate through the Six Worlds or Ways of hell beings, hungry ghosts, fighting devils, etc. So, we must sit, stop our karmas, and see the truth and peace of our worlds and minds. Mind makes mundus.