From this videoconference talk from 11 January 2019, Ajahn Anan discusses training, self-giving, and discipline.

An excerpt: "Because when we sacrifice already, then when there isn't anything more left to do, we are at ease. We can sit meditation, we can practice training the mind, and the mind is spacious and serene. Because we have reduced and given up our selfishness. Self-sacrifice is something that destroys selfishness. It destroys the sense of self, and ends this holding onto ‘this is me’ and ‘this is mine’."

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