Though gematria is most often used to calculate the values of individual words, psukim (Biblical verses), Talmudical aphorisms, sentences from the standard Jewish prayers, personal, angelic and Godly names, and other religiously significant material, Kabbalists use them often for arbitrary phrases and, occasionally, for various languages. A few instances of gematria in Arabic, Spanish and Greek, spelled with the Hebrew letters, are mentioned in the works of Rabbi Abraham Abulafia;[8] some Hasidic Rabbis also used it, though rarely, for Yiddish.[9] However, the primary language for gematria calculations has always been and remains Hebrew and, to a lesser degree, Aramaic.