Hopefully restocking the smaller stone Merkabas soon!
Merkabah (Merkavah/Merkaba) mysticism (or Chariot mysticism) is a school of early Jewish mysticism, "A person should strive to be like a Merkabah, that is to say, he should realize all the different qualities, talents and inclinations he has (his angels)."
Lurianic Kabbalah: 1570 CE–today
Apocalyptic literature: 300–100 BCE
Merkabah and Hekhalot: 100 BCE – 1000 CE
Prophets: 800–500 BCE