華藏世界海裡的時空泡泡，每個泡泡就是一個世界、一個宇宙
The Space-Time Bubble in the Ocean of Pure Land of Vairocana, Each Bubble is a World and a Universe
在佛教的宇宙觀裡，一個「世界」就是一種特定的時空結構。一種時空結構，就有一種獨有的物理特性與運行模式，而具有時空結構的世界，仍為一種「表徵世界」。
但最精純、最終極的意識本源，不在任何的表徵世界中，也不屬於任何的時空結構，反而是一種「本質」，一種「性」，它不再需要時間與空間的依存。這就是涅槃的特性：回歸本源意識，而不再顯化於表徵宇宙。
如果從華藏世界海的宏觀角度，看各個不同時空結構的宇宙，就像一個個的泡泡，泡泡内有著自己獨有的時空特性。娑婆世界，在一個泡泡中，而西方極樂世界，也在另一個泡泡中。
In Buddhist cosmology, a “world” means a specific space-time structure. A space-time structure has its unique physical property and its operating mode, and the world with space-time structure is still a kind of representational world.
However, the purest and ultimate source of consciousness does not belong to any representational world, nor does it belong to any space-time structure. Instead,it is a kind of essence and a kind of nature, which no longer depends on time and space. This is the characteristic of Nirvana: returning to original consciousness and no longer manifesting in the representational universe.
If you look at the universes with different space-time structures from the macro perspective of the Ocean of Pure Land of Vairocana,they are like bubbles, and each bubble has its own unique space-time characteristics. The Sahā world is in one bubble, and Sukhavati is in another one.