The Great Vehicle teaches us about the appearance of Buddhas in all of the worlds in the ten directions. When a Buddha appears in a certain world, that realm is named a “pure land.” For instance, Amitayus Buddha appeared in a world far to the west of our World of Endurance. His pure land was named Highest Joy or Land of Bliss. The worlds of the ten quarters are called “the other pure lands,” since they are on other sides of our World of Endurance. A pure land is an ideal world beyond the concrete reality of our world. But if the notion of pure lands were to ignore this world of ours (the only place of reality), those places would be no more than imaginary existences. The other pure lands would have no entities unless the real World of Endurance existed (that is, unless they originated here in our minds in harmony with the mind of the Buddha). Therefore a true pure land must be realized here where we are.