This book presents a study of Mesoamerican religious experience based on an analysis of ancient religious manuscripts, the calendar that informs their structure, and the author’s field work in the town of Huautla de Jiménez in the Sierra Mazateca of the state of Oaxaca. Collectively known as the Borgia Group, the Codices Borgia, Vaticanus B, Cospi, Laud, and Fejérváry-M…