What it does for me is help me to centre myself as the primary creative force in my own spacetime-perception, aka reality, I think we kind of manifest āthroughā the lenses of the planetary forces (and Iām speaking strictly magickally now, not connected to physical exploration of them) - it MAY be through the mechanism described here:
Each of the spheres was presided over by a god, as listed below, starting from the first sphere encircling the Earth:
the sphere of the lunar goddess Hecate, described by the Moon's orbit;
the sphere of Hermes, described by the planet Mercury's orbit round the sphere of the Moon;
the sphere of Aphrodite, described by the planet Venus' orbit embracing the sphere of Mercury;
the sphere of Apollo - that of the Sun - containing the spheres of the Moon, Mercury and Venus;
the sphere of Ares (Mars);
the sphere of Zeus (Jupiter);
the sphere of Chronos (Saturn);
lastly, the seven planetary spheres (Moon, Mercury, Venus, Sun, Mars, Jupiter and Saturn) were embraced by an eighth, the sphere of the fixed stars comprising the Zodiac;
then came the spheres situated beyond the planets: the sphere of the gods who reside beyond the planetary spheres; the sphere of the Demiurge in charge of creation; and the sphere of the First Intelligence. Finally, beyond the universe thus far expounded, the Creator of the world, He Whom the Chaldean Oracles name 'Father'.[3]
(snipped some text)
The Incarnation of The Soul
In Chaldean theology the spheres were the worlds presided over by the planetary gods; worlds traversed by souls on their way to incarnation and on their ascension after death. In the dream of Scipio, which ends Book VI of his De Republica, Cicero explicitly states:
To men is imparted a soul emanated from those eternal fires you call stars and luminaries which, round and spherical, quickened by divine spirits, perform their revolutions and perambulate their orbits with an admirable celerity.
According to these teachings, the human soul lives in the celestial world. Then it enters the terrestrial world through conception and birth, acquiring a physical body. On its way to incarnation the soul traverses the planetary spheres, assuming a subtle, also known as āastralā, body.[4] Just as in earthly life the native will each day put on a series of garments, from light underclothes to heavy overcoat, so the incandescent flame of the human soul, in the course of its descent from its universe of origin into the terrestrial body, assumes a vesture formed of the substances of the spheres it traverses.
This astral body comprises āvirtuesā (qualities and instincts) received from the planetary spheres traversed. Since this involves on one hand the planetary spheres, while on the other their traversal takes place outside time to end in birth into our terrestrial sphere, these qualities are reflected in the configuration of the planets at the moment of birth. Macrobiusā Commentary On The Dream Of Scipio describes the descent through the planetary spheres thus:
āsouls freed of all material contagion dwell in heaven; but those who, from this abode on high, where they are bathed in a light eternal, have cast a downward glance at bodies and at what is here below called life, and who have conceived for life a secret desire, are dragged little by little down toward the nether regions of the world, by nought but the weight of this earthbound thought. Yet no sudden fall is this, but by degrees. The soul, perfectly incorporeal, assumes not at once the gross mantle of corporeal clay, but imperceptibly, and through a chain of adulterations suffered one by one as it recedes from the pure and simple substance wherein once it dwelt, to gird and swell itself with substance of the planets. For, in each of the spheres placed beneath the heaven of fixed stars, it swathes itself in several layers of ethereal matter which, imperceptibly, form an intermediary bond by which it is united with the earthly body; so that it suffers as many degradations or as many deaths as spheres traversed.ā (Ch.XII)
The qualities acquired by the soul in the course of its descent through the spheres are thus described:
āand in its descent, not only does it [the soul] assume the aforesaid new sheath of matter from these luminous bodies, but it receives there the different faculties it must exercise throughout its sojourn in the body. From Saturn it acquires reason and understanding, or what is called the logical and contemplative faculty; from Jupiter it receives the power to act, or executive power; Mars gives it the valour required for enterprise, and a burning zeal; from the Sun it receives the senses and the power of invention, that make it feel and imagine; Venus moves it with desires; from the sphere of Mercury it takes the power to express and enunciate what it thinks and feels; finally, from the sphere of the Moon, it acquires the strength needed to propagate by the generation and increase of bodies. This lunar sphere, which is last and lowest with respect to divine bodies, is first and highest with respect to earthly bodies. This lunar body, as it were the sediment of celestial matter, at the same time is found to be the purest substance of animal matter.ā (Ch.XIl)
This teaching underlies the practice of genethliacal astrology as it was originally conceived. In the nativity the āChaldeansā saw a chart of the astral bodies, as the journey through the planetary spheres had structured them. Correctly interpreted, this chart would reveal the nativeās constituent parts, material or more subtle. It would speak of his daimon, the guardian angel who would accompany him on his voyage here below and watch over the fulfilment of his fate.[5] It would describe, therefore, the earthly existence which had devolved upon him.
The Ascension of The Soul
The Poimandres, first treatise of the Corpus Hermeticum, reveals what happens at death and after death. In order to return in pristine purity to the divine, the soul must effect a divestment, in reverse order, of the astral raiment it has donned. The soul first quits the material element encountered in the last place, namely the stuff of nature, that is the body furnished by nature. In the last place it quits the first material element encountered in its fall, namely the astral vestment of the highest sphere. Death entails a sequence of effects:
the body is consigned to dissolution, and the visible form disappears;
the temperament (subject in each case to the individual blend of the four elements), henceforth inert, is consigned to the personal daimon (the guardian angel which, at birth, takes charge of the newborn);
the bodily senses return to their respective planetary sources.
ire and lust, irrational passions, revert to unreasoning nature.
After this first divestment, the soul begins its ascension. Soaring upward through the armature of spheres, it casts off at each station the passion assumed there in the course of its descent: at the 1st station (Moon), the faculty of increase and decrease; at the 2nd (Mercury), malice and cunning; at the 3rd (Venus), the illusion of desire; at the 4th (Sun), the passion for command; at the 5th (Mars), audacity and temerity; at the 6th (Jupiter), the lust for wealth; at the 7th (Saturn), the falsehood that ensnares.
That entire article is worth reading, I only found it after adopting this exercise and disvcovering I liked it more than any other, to date, as a method of centering, focusing, and empowering myself prior to rituals, and in the morning for the day ahead.
I like its purity, that it can work with almost any system, and the fact itās not calling on external god-forms or forces (unless you want it to be).
So the short version is, we incarnate to limited form via the planetary forces, which individuate us, and any work that aims to reduce that limittation and place our individual selves ācloserā to the unlimited Source which lies back of and behind our own soul, is best attempted after aligning with and acquiring some mastery over the planetary forces - taking them as a function, rather than chains to be borne blindly, or divested.
I donāt know if thatās what Stephen Flowers intended when he listed it, iirc heās a bit vague about the whys and wherefores of using it, so Iām only explaining my own perceptions based on using it over a long period of time. 
