金剛般若波羅蜜經註解 1.274

1.274

此釋世界喻法身無一性，若知合微塵為世界，世界全是微塵，則世界無實性，故曰則非世界；以離性計而說世界，故曰是名世界也。

This explains the world, illustrating by metaphor that the dharmakāya has no unitary nature. If one knows that combining dust motes into a world means the world is completely dust motes, then the world has no real nature; hence it is said, "then it is not a world." Because it is spoken of as a world while free from the conceptual imputation of intrinsic nature, it is said: "it is named a world."