Indra's Net
Far away in the heavenly abode of the Great God Indra, the protector and nurturer of life, there is a wonderful net which stretches out indefinitely in all directions, in accordance with the extravagant tastes of deities.

At the net's every node, is hung a single glittering jewel and since the net itself is infinite in dimension, the jewels are infinite in number. There hang the jewels, glittering like stars of the first magnitude, a wonderful sight to behold.

If we now arbitrarily select one of these jewels for inspection and look closely at it, we will discover that in its polished surface there are reflected all the other jewels in the net, which sparkle in the magnificence of its totality.

Not only that, but each of the jewels reflected in this one jewel is also reflecting all the other jewels, so that the process of reflection is infinite. As each gem reflects every other one and everything else in the universe, so are you affected by every other
system in the universe.
From The Avatamsaka Sutra Francis H. Cook
Hua-Yen Buddhism: The Jewel Net of Indra 1977