Reading guide
The teaching in one sentence
Eight dimensions of mastery progress through combinations of internal versus absent internal form-perception, limited versus limitless external forms, and finally four specific colors — blue, yellow, red, white — each dimension marked by the meditator's own confident declaration, “I know and see.”
Two variables, crossed across the first four dimensions
The first four dimensions cross two variables: whether form is perceived internally at all, and whether the external forms seen are limited or limitless in scope. All four dimensions include both pretty and ugly forms within their scope, testing whether the meditator's mastery holds across that entire aesthetic range.
Four colors, closing the sequence
The final four dimensions drop the internal/external distinction of the first four and instead specify four pure colors in turn — blue, yellow, red, white — each described identically apart from its color, forming the basis for what later tradition develops into the color kasina meditations.
Mastery, not mere perception
Every one of the eight dimensions closes with the identical phrase, “mastering them, they perceive: 'I know and see,'” distinguishing this practice from simply perceiving forms passively — the discourse's own emphasis falls on active mastery over what's perceived, not merely on the perception itself.
Key terms
The text
The first four dimensions: internal perception crossed with scope
§1“Mendicants, there are these eight dimensions of mastery. What eight? Perceiving form internally, someone sees forms externally, limited, both pretty and ugly. Mastering them, they perceive: ‘I know and see.’ This is the first dimension of mastery. Perceiving form internally, someone sees forms externally, limitless, both pretty and ugly. Mastering them, they perceive: ‘I know and see.’ This is the second dimension of mastery. Not perceiving form internally, someone sees forms externally, limited, both pretty and ugly. Mastering them, they perceive: ‘I know and see.’ This is the third dimension of mastery. Not perceiving form internally, someone sees forms externally, limitless, both pretty and ugly. Mastering them, they perceive: ‘I know and see.’ This is the fourth dimension of mastery.
The final four dimensions: four pure colors
§2Not perceiving form internally, someone sees forms externally, blue, with blue color and blue appearance. Mastering them, they perceive: ‘I know and see.’ This is the fifth dimension of mastery. Not perceiving form internally, someone sees forms externally, 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, 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, white, with white color and white appearance. Mastering them, they perceive: ‘I know and see.’ This is the eighth dimension of mastery. These are the eight dimensions of mastery.”
Self-check quiz
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