Another passage of the Quran states "The earth will shine with the light of its Lord" (Q39:69). Mainstream exegetes take this statement literally. Exegetes of the rationalist Mu'tazila school of theology of the 8th–10th centuries interpreted the word nūr in this passage in the sense of "the truth, the Quran and the proof" rather than the commonplace meaning of "light".[8] Shia exegetes take it to mean "the land of the soul will shine with the Lord's light of justice and truth during the time of Imam al-Mahdi."