These extemporaneous talks were delivered to the monks living at Ajaan Mahā Boowa’s monastery. The talks in this collection all deal with the practice of meditation, and particularly with the development of wisdom. In these talks, Ajaan Mahā Boowa often recounts conversations with his teacher, Ajaan Mun, which reveal the power and depth of Ajaan Mun’s teachings and of the teachings of the Forest Tradition in general.