This book is based upon the talks and meditation instructions offered during a thirteen-day retreat at Amaravati, in the summer of 2012. It is intended to be something of a follow up to Finding the Missing Peace, which was published in 2011 and presented as ‘a primer of Buddhist meditation’. The Breakthrough is intended to be a somewhat more specialized toolkit, describing the path of Buddhist meditation in an in-depth way, specifically highlighting the role of wisdom and reflective investigation in the development of insight and thereby psychological freedom. The title The Breakthrough comes from the Pali word ‘abhisamaya’. The word, as used by the Buddha, is synonymous with the first level of liberation, known as ‘stream-entry’ – the ‘stream’ in question being the Eightfold Path, which leads to full emancipation, enlightenment. As is described in these pages, this breakthrough is considered to be a spiritual turning point of great significance. It marks the point on the spiritual journey beyond which enlightenment is assured and freedom guaranteed.