In the book, Lillie begins by outlining the foundational principles of Buddhism, including its ethical teachings, concepts of suffering, and the path to enlightenment. He presents key Buddhist figures, doctrines, and practices, highlighting similarities to Christian beliefs, particularly in their moral and ethical dimensions. Lillie suggests that the travels of traders and missionaries facilitated the exchange of ideas between Eastern and Western cultures, which may have led to a blending of beliefs.As the narrative progresses, Lillie draws comparisons between specific teachings of Jesus and those found in Buddhist texts. He discusses themes such as compassion, forgiveness, and the nature of existence, positing that early Christian thought might have absorbed some Buddhist influences. The book also addresses the challenges of establishing definitive connections between the two religions, considering the historical complexities and the possibility of parallel developments.