Omnipoint

Full esoteric description of the picture, by Manly P. Hall: GRAND ROSICRUCIAN ALCHEMICAL FORMULA In the heavens and surrounded by both an outer and inner aureole and by hierarchies of celestial beings are radiant symbols of the Holy Trinity: י ה ו ה [JHVH] ( the Father), the Lamb (the Son), and the Dove (the Holy Ghost). The respective dignities of the heavenly host are determined by the number and arrangement of their wings.  The glory of the Godhead and the invisible world is concealed from the inferior creation partly by a line and partly by the circle of the starry heavens, itself obscured by clouds. Five birds - a crow (Saturn, lead); a swan (Jupiter, tin); a cock (Mars, iron); a pelican (Venus, copper); and the phoenix (Mercury, quicksilver)-occupy the half circle directly within the band of the starry heavens. The upper half of the blue circle containing the five planetary signs is occupied by the zodiacal signs.  In the green circle appear the words: ”The solar year, the stellar year and the year of winds.”; in the yellow circle: ”The mercury of the sages, corporeal mercury, and common, or visible mercury”; in the orange circle: ”Combustible sulphur, fixed sulphur, and volatile, or etherial sulphur”; in the red circle: ”Elementary salt, earthly salt, and central salt”; and in the violet circle; ”For kinds of fire are requisite for the work”. The white central triangle contains the figure of the solar mercury. The entire upper section of the plate is an esoteric diagram of the constitution of the threefold spiritual sin. In the lower foreground is a hill upon which grow a number of trees, each bearing the symbol of an alchemical supstance. At the lower right and represented by a nocturnal scene is the inferior world, while at the lower left and represented by a diurnal scene is the the superior world. Thus water is symbolized by the right side of the plate and fire by the left side. Under the wings of the phoenix are two circles containing symbols for fire and air; under the wings of the eagle are two other circles containing symbols of earth and water. 

The Merkabah is a vessel created as a bridge point within our heart.  "Mer" means Light. "Ka" means Spirit. "Ba" means Body. Mer-Ka-Ba means the spirit/body surrounded by counter-rotating fields of light, (wheels within wheels), spirals of energy as in DNA, which transports spirit/body from one dimension to another. It is how you travel the dimensions within your consciousness through the crystalline energy activated by the heart chakra. 

Shri Yantra is a depiction of Creation and actually is more closely related to the Tree of Life. 

    The Sri Yantra is conceived as a place of spiritual pilgrimage. It is a representation of the cosmos at the macrocosmic level and of the human body at the microcosmic level (each of the circuits correspond to a chakra of the body).

Sri Yantra is first referred to in an Indonesian inscription dating to the seventh century C.E. It may have existed in India, its country of origin, long before the time of its introduction to Indonesia.

The Sri Yantra is a configuration of nine interlocking triangles, surrounded by two circles of lotus petals with the whole encased within a gated frame, called the “earth citadel”. The nine interlocking triangles centered around the bindu (the central point of the yantra) are drawn by the superimposition of five downward pointing triangles, representingShakti; the female principle and four upright triangles, representingShiva; the male principle. The nine interlocking triangles form forty three small triangles each housing a presiding deity associated with particular aspects of existence.

Man’s spiritual journey from the stage of material existence to ultimate enlightenment is mapped on the Sri Yantra. The spiritual journey is taken as a pilgrimage in which every step is an ascent to the center, a movement beyond one’s limited existence, and every level is nearer to the goal. Such a journey is mapped in stages, and each of these stages corresponds with one of the circuits of which the Sri Yantra is composed from the outer plane to the bindu in the center.

The Sri Yantra is a tool to give a vision of the totality of existence, so that the adept may internalize its symbols for the ultimate realization of his unity with the cosmos.