Lurianic Kabbalah is a school of Kabbalah named after Isaac Luria (1534–1572), the Jewish rabbi who developed it. Lurianic Kabbalah gave a seminal new account of Kabbalistic thought that its followers synthesised with, and read into, the earlier Kabbalah of the Zohar that had disseminated in Medieval circles.
Kabbalistic chart of Divine names in Ari synagogue. Traditional Lurianic prayer method involved esoteric kavanot meditations on specific Divine letter permutations related to each prayer
Mikveh of Isaac Luria on the hillside below Safed in the Galilee, fed by a cold spring
The Four Worlds, sometimes counted with a prior stage to make Five Worlds, are the comprehensive categories of spiritual realms in Kabbalah in the descending chain of Existence.
Jacob's vision in Genesis 28:12 of a ladder between Heaven and Earth. In Kabbalistic interpretation, the Sulam-ladder's four main divisions are the Four Worlds and the angelic hierarchy embody external dimensions of the lights-vessels, while souls embody inner dimensions
Ezekiel's Tomb in Iraq. Ezekiel's vision of the Divine Merkabah-Chariot, and Isaiah's vision of the Kisei HaKavod-Throne of Glory, are related in Kabbalah to beholding the Four Worlds from Yetzirah, and from Beriah