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Aṅguttara Nikāya - The Numerical Discourses

1: The Book of the Ones

589–591

1“When one thing is developed and cultivated there is the penetration of many elements … the penetration of diverse elements … the analysis of many elements. What one thing? Mindfulness of the body. When this one thing is developed and cultivated there is the penetration of many elements … the penetration of diverse elements … the analysis of many elements.”