In this book we have a modern cultural examination done through the liturgical works of a Sinsearaithe. Gnatha na Sinsear is a cultural and religious practice that foregoes the typical neo-pagan views of Celtic culture. The culture itself is growing with different families and tribes springing up like fresh grass after a long cultural freeze. This project was done with the intention of providing a set of practical rituals and ceremonies along with the fundamental training needed for those who will do the work of a draoi in leading and composing rites and ceremonies. The works within this book are the product of years of research and study dedicated to understanding the ways of the old and bringing them into the modern in their cleanest and purist forms. The rites and practices are a reflection of the passion of the Sinnsreachd culture and the combined Gaelic historical culture they emulate.