The Vietnamese story about the arrival of Buddhism and the building of the first Buddhist temples in what is now northern Vietnam contains no distinctively Buddhist content, but rather is a tale of thaumaturgy, the worship of trees and of rocks, and rainmaking. This essay analyzes the textual history of the story, which is dated in the early third century CE. It examines the names of the two major protagonists of the story and, although the names were later absorbed into the Sinitic literary tradition, this study proposes a Tamil Hindu origin for them. One is reminded of the trade route that connected India and China along the coasts of Southeast Asia at that time; the evidence of Brahmans from India in early Southeast Asia, including northern Vietnam; and evidence of Hindu elements in Vietnamese texts.