Not perceiving form internally, someone sees forms externally that are yellow, with yellow color and yellow appearance. They’re like a champak flower that’s yellow, with yellow color and yellow appearance. Or a cloth from Varanasi that’s smoothed on both sides, yellow, with yellow color and yellow appearance. Mastering them, they perceive: ‘I know and see.’ This is the sixth dimension of mastery. Not perceiving form internally, someone sees forms externally that are red, with red color and red appearance. They’re like a scarlet mallow flower that’s red, with red color and red appearance. Or a cloth from Varanasi that’s smoothed on both sides, red, with red color and red appearance. Mastering them, they perceive: ‘I know and see.’ This is the seventh dimension of mastery. Not perceiving form internally, someone sees forms externally that are white, with white color and white appearance. They’re like the morning star that’s white, with white color and white appearance. Or a cloth from Varanasi that’s smoothed on both sides, white, with white color and white appearance. Mastering them, they perceive: ‘I know and see.’ This is the eighth dimension of mastery.