Although Body Type is not part of the personality and, therefore, technically not one of the Overleaves, choosing a Body Type is similar to choosing an Overleaf; it is chosen Astrally and in some way will facilitate the Lessons and Karmas for that particular life. The Body Type works together with Astrology to determine the predominant planetary influences which will affect the personality. However, the effect of Astrology and Body Type is less than that of the Overleaves in that their effect can be neutralized somewhat by becoming aware of their workings. The Body Type will influence personality traits, physical characteristics (strengths and weaknesses), and psychological tendencies, including emotional and intellectual capacities. Your Body Type is often chosen as a self‑karma or to facilitate Karmas with others. Many Essences will choose favorite Body Types during a particular Physical Pane cycle.

The Universe is divided up into orders of magnitude or layers of worlds within worlds, each of which reflects the unity of the whole. The Universe as a whole can be viewed as a hierarchy of laws upon laws. Humans are microcosms that mirror the greater cosmos of the Universe. Thus there are seven Body Types which correspond to the sun, moon, and the five closest planets: Mercury, Venus, Mars, Saturn, and Jupiter. These seven Body Types, like Overleaves, divide into three Exalted Types, three Ordinal Types, and one Neutral Type.

These seven "heavenly bodies" also correspond to the glandular or regulatory systems in the human organism. Each of the major glands is keyed magnetically to the emanations of a particular planet and is subject to its influence astrologically. If all the glands were perfectly balanced, the influence of the five planets and the sun and moon would be harmonious. However, when you choose a Body Type, you choose to be subject to a dominant glandular influence, in which one or more of the glands is more active than the others. When one gland predominates, you are said to fall into that particular type, and it is named according to the ruling planet for that particular gland. Because of the increased activity of one or more glands, you take on the physical and psychological characteristics which correspond to the increased output of those glands.

Most fragments will choose a body that comes under the influence of two or more body types. For example, the body can be 70 percent Venusian, 20 percent Mercurial, and 10 percent Lunar. Pure body types are rare and are found mainly in mythology, fairy tales, or archetypes. The Body Type(s) essence chooses will "progress" over the lifetime or lifetimes in the following order: Lunar, Venusian, Mercurial, Saturnian, Martial, Jovian, and Solar. Lunar is the most "immature" type and Jovian the most "advanced." With this progression, the Body Type(s) you start out with will move towards the characteristics of the next in line. Every Essence gives itself the opportunity to try all types and continue along the progression.

This progression will occur gradually during a lifetime and more radically between lives. Because a body is generally a combination of types, each aspect will move in its particular progression. For example, in a Lunar‑Martial type, the Lunar develops in the direction of Venusian and the Martial develops in the direction of Jovian. So, later in life and in the next life, this body type would progress towards Venusian‑Jovian. Although this is the general rule, sometimes Essence will choose to retain one of the Body Types over several lives while progressing the other(s). Major life shifts are often accompanied by shifts in Body Type. Body Types also progress in fashion in each culture. A majority of women seen on television at this time are the Saturnian‑Solar type, but the fashionable type is now moving to Martial, as is seen by more aggressive and athletic energy in the media. In an earlier generation, small, thin, quick bodies (evinced by Fred Astaire) were in style. Before that, at the turn of the century, voluptuous Venusians were the rage.

By becoming aware of your Body Type with its corresponding strengths and weaknesses, you can work consciously to achieve balance. The way to do this is by drawing upon the positive qualities of the next progressive type and by pulling in the balancing influence of the complementary type (i.e., the body type on the same axis). For example, the Venusian, with its dominant parathyroids, has a tendency towards passivity and lethargy. It could draw upon the speed of the thyroid type, Mercurial, and the energy and passion of the adrenal type, Martial.