This Bodhi Leaf by Ajahn Brahmavamso (Ajahn Brahm) is an essay on the path, and the qualities, that lead to Nibbana. Ajahn Brahm is a senior Western monk of the Forest Tradition who lives and teaches in Australia.
This is the audiobook version of Metta: Universal Love WH365-6, in which the founder of the Maha Bodhi Society in India explains the ethics, the psychology, the blessings and power of metta, with instructions on the traditional practice of metta-bhavana meditation.
"But let not metta be mistaken as a mere sentiment. It is the power of the strong.