One of the sacred geometry forms, Merkabas are tetrahedrons,which are formed from the intersection of two, three-sided pyramids. Formed asthe three dimensional Star of David, the Merkaba means that we have 3Dinterlocking triangles - meaning that the spheres are merging together thedivine and the human... Shamanic Healing and Realm Walking. Merkabas are theperfect tools for self-healing and advanced Reiki techniques. The Merkaba isbelieved to achieve transformation on all levels of existence. Merkabas aregreat tools for working on your spiritual transformation, which some believe isthe whole purpose of our existence. Merkabas are believed to form a spiritualshield around the holder. In the upper dimensions, the geometrical shape of thehuman energy field is said to be in the shape of the Merkaba. Thus, meditatingwith the Merkaba helps us connect with our higher self.