As far as Kabbalah is concerned, you have genuine, authentic Jewish Kabbalah as typified by the Zohar and a fake, New-Agey version of Kabbalah which is the one Madonna is a member of.
Authentic Kabbalah is simply the mystical dimension of the Jewish faith founded upon a mystical understanding of Torah as a path to Union with God, who is viewed through a kind of 10-scaled series of manifestations of Himself, ranging from
Ein Sof - God as the Unknowable, formless, Divine Essence to Malkhut. God is unknowable in his endless,
Ein Sof state however he is knowable to his creation in a sense through his manifested state in the
Sefirot that kind of 10-scaled series of attributes stretching right up to *Ein Sof * at the top.
The individual Sephirah are:
Sephirah:
Above-consciousness
1 Keter-“Crown”
Conscious intellect
2 Chokhmah-“Wisdom”
3 Binah-“Understanding”
Conscious emotions
4 Chesed-“Kindness”
5 Gevurah-“Severity”
6 Tiferet-“Beauty”
7 Netzach-“Eternity”
8 Hod-“Splendor”
9 Yesod-“Foundation”
10 Malkuth-"Kingship
Kabbalah sees the human soul as being a reflection of the Divine One and more broadly, it views all created things as reflections or vestiges of their life source in the sephirot, the Divine realm of ideas or exemplars. Therefore, the sephirot also describe the spiritual life of man.
There is also a heavy emphasis placed upon direct experience of
Ohr - Divine Light which is equivalent to the Christian mystics experiences’ of the Uncreated Light of God that fills ones soul and unites it with its maker.
Blessed Ramon Llull was a Christian Kabbalist, as were many Catholic scholars during the Renaissance such as Picco Mirandola and Marsilio Ficino. Yes there are really Christian Kabbalists, its very ancient in Catholicism - at least from the 12th century onwards.
Elements of it are certainly compatible with Catholicism as they stand, whereas others should probaby be re-interpreted in light of the Christian revelation or “baptized” so to speak.
The New-Agey type Kabbalah is utter rubbish

Avoid it please at ALL costs. Read the Zohar to get real Kabbalah.
There is a good translation of the Zohar with readable commentary by Rabbi David Channan Matt:
amazon.com/Zohar-Annotated-Explained-SkyLight-Illuminations/dp/1893361519