When there is sense restraint, one who has fulfilled sense restraint has fulfilled a vital condition for ethical conduct. When there is ethical conduct, one who has fulfilled ethical conduct has fulfilled a vital condition for right immersion. When there is right immersion, one who has fulfilled right immersion has fulfilled a vital condition for true knowledge and vision. When there is true knowledge and vision, one who has fulfilled true knowledge and vision has fulfilled a vital condition for disillusionment and dispassion. When there is disillusionment and dispassion, one who has fulfilled disillusionment and dispassion has fulfilled a vital condition for knowledge and vision of freedom.
Suppose there was a tree that was complete with branches and foliage. Its shoots, bark, softwood, and heartwood would all grow to fullness.
In the same way, when there is sense restraint, one who has fulfilled sense restraint has fulfilled a vital condition for ethical conduct. … One who has fulfilled disillusionment and dispassion has fulfilled a vital condition for knowledge and vision of freedom.”
Numbered Discourses 6.51 5. About Dhammika With Ānanda
Then Venerable Ānanda went up to Venerable Sāriputta, and exchanged greetings with him. When the greetings and polite conversation were over, Ānanda sat down to one side, and said to Sāriputta:
“Reverend Sāriputta, how does a mendicant get to hear a teaching they haven’t heard before? How do they remember those teachings they have heard? How do they keep exercising the teachings with which they are already familiar? And how do they come to understand what they haven’t understood before?”
“Well, Venerable Ānanda, you’re very learned. Why don’t you clarify this yourself?”