 They opposed kabbalah and restricted its significance from Jewish historiography.In the mid-20th century, it was left to Gershom Scholem to overturn their stance, establishing the flourishing present-day academic investigation of Jewish mysticism, and making Heichalot, Kabbalistic and Hasidic texts the objects of scholarly critical-historical study.In Scholem's opinion, the mythical and mystical components of Judaism were at least as important as the rational ones, and he thought that they, rather than the exoteric Halakha or intellectualist Jewish philosophy, were the living subterranean stream in historical Jewish development that periodically broke out to renew the Jewish spirit and social life of the community.