The geometric shape of the merkaba is a star tetrahedron and there are three of them superimposed on each other (a trinity). It is a vehicle that can not only take spirit and body from one dimension to another it can also create reality. It gives us an expanded awareness of who we are by connecting us with higher levels of consciousness. In other words it plugs us back in so we wake up and remember our true nature!
When a person's merkaba is activated it spins at close to the speed of light. And, of the three star tetrahedron's one spins clockwise, one anti-clockwise and the third remains stationary. Depending on a person's height their merkaba can be 50 to 60 feet in diameter when healthily spinning. Activation takes place through correct breathing, clarity of intention and existing in a state of unconditional love. You can visually see if a person's merkaba is active because they will exude a radiance, appear more youthful than their chronological age and relate to others through detached involvement.
RECOMMENDED READING:
"The Ancient Secret of the Flower of Life" Volumes 1 & 2 by Drunvalo Melchizedek
Explore the miracle of our existence by meandering through the wonderland of geometry, science, ancient history and new discovery, seen through the widened vision of Drunvalo and the Flower of Life. Volume 2 will explore in great detail the Mer-Ka-Ba, the 55-foot-diameter energy field of the human lightbody. This knowledge leads to ascension and the next dimensional world.
Nothing in This Book Is True, but It's Exactly How Things Are: The Esoteric Meaning of the Monuments on Mars by Bob Frissell
A guidebook for transcending present three-dimensional limitations, and an account of our function within the grand celestial battle between internal and external knowledge. The newly revised and expanded edition features photos and illustrations throughout, and adds the final three breaths of the merkaba meditation. The author emphasizes the importance of meditation for promoting the understanding of and connection to the metaphysical.