In the Talmud and the Jewish Kabbalah, the scholars agree that there are two types of spiritual places called "Garden in Eden". The first is rather terrestrial, of abundant fertility and luxuriant vegetation, known as the "lower Gan Eden". The second is envisioned as being celestial, the habitation of righteous, Jewish and non-Jewish, immortal souls, known as the "higher Gan Eden". The rabbis differentiate between "Gan" and Eden. Adam is said to have dwelt only in the "Gan", whereas Eden is said never to be witnessed by any mortal eye. In Rabbinic Judaism, the word 'Pardes' recurs, but less often in the Second Temple context of Eden or restored Eden. A well-known reference is in the Pardes story, where the word may allude to mystic philosophy.