1322 MK
One of the best known and most influential Kabbalists is Isaac Luria, known as the Holy Ari, who lived in the sixteenth century during a time when there was an unusual gathering of Jewish mystics in the city of Safed. Luria became one of the key teachers in Safed for these Kabbalists and his unusual teachings dramatically changed the direction of Jewish mysticism, which in time deeply affected (and still does) mainstream Judaism.