(Hebrew; "Book of Splendour") Classical text central to Kabbala that has influenced all mystical movements within Judaism. Many Kabbalists invest it with a sanctity normally accorded only to the Torah and the Talmud. Written mostly in Aramaic, it is believed to be mainly the work of Moses de León. The main part of the Zohar provides a mystical and symbolic interpretation of biblical texts, especially the Torah, the book of Ruth, and the Song of Solomon. Other sections deal with the mystery of creation, the problem of evil, and the cosmic significance of prayer and good deeds