Most Jews today are somewhat suspicious of mysticism. Most Jews don't study Kabbalah, and in fact, the classical rules of Jewish law forbid unmarried men under age 40 from studying mysticism. First, get to a stable place in life, earn a living, raise a family, then you can indulge in mysticism.That said, most knowledgeable Jews do not dismiss Kaballah. If it is viewed as metaphor or allegory, it teaches a number of extraordinarily valuable lessons. On the other hand, if taken literally, it is, at times, just plain nuts. Chassidic Judaism has its roots in Kaballah, so what many people describe as Ultra Orthodox Judaism can also be described as Kaballist Judaism.