Who was the soul-personality Hippolyte Léon Denizard Rivail?
Why, in the Spiritist codification, did he adopt his druidic name Allan Kardec?
What is Druidism? What is Spiritism?
What is the relationship between Spiritism and the Celtic Ray?
Why is the recovery of Ancestral Wisdom important in this New Era?
What is the Psychological Era, as named by Kardec?
Who are the New Celts?
These are some of the questions addressed in this work, which offers the reader an educational and scientific synthesis of druidism, while uniting universal history with Spiritist accounts, showing that at the dawn of this New Era, the Celtic flame is being rekindled in the hearts of the seekers of Light.