Heartwood of the Bodhi Tree: The Buddha’s Teaching on Voidness by Buddhadasa Bhikkhu.

Three talks given to a Dhamma study group in Siriraj Hospital, Bangkok, on 17 Dec 1961, 7 January 1962, and 21 January 1962.

Translated from the Thai (แก่นพุทธศาสน์) by Dhammavicayo. Revised and edited by Santikaro Bhikkhu. Thailand edition of the title by Wisdom Publications. Silkworm, Chiang Mai, 2004. ISBN: 978-974-9575-57-1  [INFO]