ཟིལ་གྱིས་མནན་ནས་མཐོང་བ་འདི་ནི་ཟིལ་གྱིས་གནོན་པའི་སྐྱེ་མཆེད་དྲུག་པའོ། །
One who perceives formlessness internally looks at external forms that are red, the color red, something that appears to be red, or gives off red light. They understand after mastering them, see after mastering them.
Meditative absorption, non-apprehension, perfection