ཡོངས་སུ་བརྟགས་པ་དེས་དེ་ལ་མིག་གི་རྣམ་པར་ཤེས་པའི་གནས་པ་དང་ལམ་ཡང་མེད་དོ། །
All of the apparent characteristics of form from those that are external and internal to those that are near are like a mass of foam, in the same way that the physical appearances perceived by the eye are like a mass of foam, and the elements that constitute physical appearances are as baseless as space.
Light, Reality, Assembly