From this videoconference talk from 19 July 2019, Ajahn Anan discusses the Venerable Anya Kondanya, a great disciple of the Buddha, as well as advice for our own practice.

Two excerpts: "The Venerable arahant Anya Kodanya, what was it that he knew? The Buddha gave the sermon of a very ordinary nature. He taught that all things of the nature to arise have the nature to cease.

"He listened to the Dhamma just once and he succeeded to attain to becoming a sotapanna, a stream-enterer."

Note: One can read talk transcripts at the Wat Marp Jan 'Reflections' page, which also includes questions and answers with Ajahn Anan, which are not in the audio files. See: https://watmarpjan.org/en/dhamma-reflections/reflections-archive/