From this videoconference talk from 28 December 2018, Ajahn Anan discusses the foremost female lay supporter of the Buddha's time, Lady Visakha, and the power of virtue.
An excerpt: "...Lady Visakha...wanted to make merit and do goodness within the dispensation of the Buddha. She had the state of mind that wanted her heart to have cleanliness and purity, that which we call nibbana. She saw the happiness in the present, she made merit and also gained the results of that merit."
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. This transcript can be found here: https://watmarpjan.org/en/lady-visakha-and-the-power-of-virtue/