[100] Ānanda, there are these eight dimensions of mastery (abhibhāyatana). What eight?
One who is percipient of form internally sees forms externally, limited, beautiful and ugly. Having mastered them, he is percipient thus: 'I know, I see.' This is the first dimension of mastery.
One who is percipient of form internally sees forms externally, measureless, beautiful and ugly. Having mastered them, he is percipient thus: 'I know, I see.' This is the second dimension of mastery.
One who is percipient of the formless internally sees forms externally, limited, beautiful and ugly. Having mastered them, he is percipient thus: 'I know, I see.' This is the third dimension of mastery.
One who is percipient of the formless internally sees forms externally, measureless, beautiful and ugly. Having mastered them, he is percipient thus: 'I know, I see.' This is the fourth dimension of mastery.
One who is percipient of the formless internally sees forms externally that are blue, blue in color, blue in appearance, with a blue luster—just as a flax flower (ummāpuppha) is blue, blue in color, blue in appearance, with a blue luster; or just as a cloth of Bārāṇasī, smoothed on both sides, is blue, blue in color, blue in appearance, with a blue luster—even so, one who is percipient of the formless internally sees forms externally that are blue, blue in color, blue in appearance, with a blue luster. Having mastered them, he is percipient thus: 'I know, I see.' This is the fifth dimension of mastery.
One who is percipient of the formless internally sees forms externally that are yellow, yellow in color, yellow in appearance, with a yellow luster—just as a kaṇṇikāra flower is yellow, yellow in color, yellow in appearance, with a yellow luster; or just as a cloth of Bārāṇasī, smoothed on both sides, is yellow, yellow in color, yellow in appearance, with a yellow luster—even so, one who is percipient of the formless internally sees forms externally that are yellow, yellow in color, yellow in appearance, with a yellow luster. Having mastered them, he is percipient thus: 'I know, I see.' This is the sixth dimension of mastery.
One who is percipient of the formless internally sees forms externally that are red, red in color, red in appearance, with a red luster—just as a bandhujīvaka flower is red, red in color, red in appearance, with a red luster; or just as a cloth of Bārāṇasī, smoothed on both sides, is red, red in color, red in appearance, with a red luster—even so, one who is percipient of the formless internally sees forms externally that are red, red in color, red in appearance, with a red luster. Having mastered them, he is percipient thus: 'I know, I see.' This is the seventh dimension of mastery.
One who is percipient of the formless internally sees forms externally that are white, white in color, white in appearance, with a white luster—just as the morning star (osadhitārakā) is white, white in color, white in appearance, with a white luster; or just as a cloth of Bārāṇasī, smoothed on both sides, is white, white in color, white in appearance, with a white luster—even so, one who is percipient of the formless internally sees forms externally that are white, white in color, white in appearance. Having mastered them, he is percipient thus: 'I know, I see.' This is the eighth dimension of mastery.
These, Ānanda, are the eight dimensions of mastery.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.