Note 2 — Chapter IX · SOO-HO-TO. LEGEND OF BUDDHA.
James Legge translation
(2) Sakra is a common name for the Brahmanic Indra, adopted by Buddhism into the circle of its own great adherents;—it has been said, “because of his popularity.” He is generally styled, as here, T’een Ti, “God or Ruler of Devas.” He is now the representative of the secular power, the valiant protector of the Buddhist body, but is looked upon as inferior to Sâkyamuni, and every Buddhist saint. He appears several times in Fâ-Hien’s narrative. E. H., pp. 108 and 46.