佛說觀佛三昧海經 9.46

9.46

「此想成已當作是念：『諸佛世尊住大寂滅，身心清淨無來無去，如我身者，四大五陰所共合成，如芭蕉樹中無堅實，如水上沫、如水中月、如鏡中像、如熱時焰、如野馬行、如乾闥婆城。』作是想已諸像尋滅有金色光，於金光間有金佛影，如鏡中像，行住坐臥四威儀中現一切色。

"When this visualization is accomplished, one should form this thought: 'The Buddha-Bhagavats abide in great quietude, their bodies and minds pure, neither coming nor going. As for my body, it is a composite produced by the four elements and five aggregates; it is like a plantain tree, lacking solidity within; like foam on water; like the moon reflected in water; like an image in a mirror; like a mirage in the heat; like shimmering heat-waves; like a city of gandharvas.' After forming this visualization, the statues quickly vanish, and golden light remains. Amid the golden light appears the shadow of a golden Buddha, like an image in a mirror, manifesting all forms throughout the four deportments of walking, standing, sitting, and lying down.