This chanting, led by Ajahn Anan, is chanted regularly at Wat Marp Jan. Chanting is a strong tradition in this lineage, a skillful way to quiet the mind and reflect on liberating teachings. This chant is traditionally used to invite devas (heavenly beings) to come listen to Dhamma.

One can listen peacefully or chant along in the Wat Marp Jan chanting book (pages 163-4): https://watmarpjan.org/en/audio-books/books/ (English translation included).