The term "Kabbalah" itself was first applied to secret mystical teachings in the eleventh century by Iba Gabriol, a Spanish philosopher, and has since become applied to all Jewish mystical practice.

Although the Kabbalah is founded on the Torah, the Jewish scriptures and other sacred writings, it is not an intellectual discipline; and the mystic is told not to practice it in solitude, but is to employ it to enlighten humanity. The Kabbalist seeks two things: an union with God while maintaining a social, family, and communal life within the framework of traditional Judaism. Those who have adopted the Kabbalistic teachings have modified these latter aims.

According to Kabbalah, the true essence of God is so transcendent that it cannot be described, except with reference to what it is not. This true essence of God is known as Ein Sof, which literally means "without end," which encompasses the idea of His lack of boundaries in both time and space. In this truest form, the Ein Sof is so transcendent that It cannot have any direct interaction with the universe. The Ein Sof interacts with the universe through ten emanations from this essence, known as the Ten Sefirot.

As you can see, the new age, mystical beliefs are not scriptural and are instead based on "outside" experiences.