Zoroaster prophecy that saw a return of Sassanid emperor Bahram: Shoghi Effendi also stated that Zoroaster lived roughly 1000 years before Jesus. The Greeks—in the Hellenistic sense of the term—had an understanding of Zoroaster as expressed by Plutarch, Diogenes Laertius, and Agathias that saw him, at the core, to be the "prophet and founder of the religion of the Iranian peoples," Beck notes that "the rest was mostly fantasy". Zoroaster was set in the ancient past, six to seven millennia before the Common Era, and was described as a king of Bactria or a Babylonian (or teacher of Babylonians), and with
Zoroaster will. The purpose of humankind, like that of all other creation, is to sustain "aša". For humankind, this occurs through active participation in life and the exercise of constructive thoughts, words and deeds. Elements of Zoroastrian philosophy entered the West through their influence on Judaism and Middle Platonism and have been identified as one of the key early events in the development of philosophy. Among the classic Greek philosophers, Heraclitus is often referred to as inspired by Zoroaster's thinking. In 2005, the Oxford Dictionary of Philosophy ranked Zarathustra as first in the chronology of philosophers. Zarathustra's impact lingers today due