2010-05-07: Ajahan Sona – The Relationship of Concentration to the Development of Wisdom Talk by Ajahn Sona, Friday, May 7th 7 – 9 p.m. Public Talk at Queenswood Retreat Center. Topic: The Relationship of Concentration to the Development of Wisdom. The Relationship of Concentration to the Development of Wisdom Play Now | Play in Popup | Download Questions and Answers following the talk [ 22:07 ] Play Now | Play in Popup | Download