The poetic name for the Chakra system is “Nectar-Rayed Moon”—which is a beautiful description of the fluid (nectar) that rains and splits into two streams flowing downwards.
In my own experience, some of the words that come to mind: super conductors, spirit forces, spirals, spheres, bubbles, circles and triangles of flowing light and energy, coils, wheels, aura, astral body, and the list goes on. Everyone has their own translation, but they are often very similar.
When ones practices Medical QiGong meditations, the visualizations are from one Chakra to another. They form a geometric design of triangles. Even if my QiGong teacher did not talk about this, I realized it was the same energy. Their “Chi” is “Prana” in Yoga—which loosely means “Universal Energy” or “Life Force” or “Vital Force.” And all of this universal energy comes into our bodies via the Chakra system.
If you study what “vitality globules” mean (scientific term for particles from sunlight), you will begin to understand what the word Prana really means. There will be more on this later.
The Lotuses of the Body: “These lotuses are the psychic centers of the body, within which force and life energy, together with Divine forces, are said to be stored. They correspond with the various plexuses or ganglionic centers, the nerve groups, where vitality and sensation are more strongly congregated than at other portions of the human frame.” —Practical Yoga and Persian Magic by O. Hashnu Hara
Another way to describe this nectar, this fluid, this stream: a brilliant light that pulsates like a lighthouse in the head. It is so bright in the middle of the forehead, and it takes you on a journey of visions that can never be forgotten. The visions are different for everyone, but they are always so powerful that they change the person forever. Just seeing this light is an enlightening sight.
Iyengar writes that “Manas (mind) and Surya (the Sun), are situated in the region between the navel and the heart, and the Lalata is at the top of the forehead.”
Edgar Cayce said that we should learn about endocrine glands to fully understand the Chakra system, because he stated that the Chakra system IS the endocrine system. Personally, I don't agree with that, but I would say that the endocrine system, along with everything else in the body, is regulated by the Chakra system. In other words, we would not be alive without our Chakra System. It is our personal solar and lunar system. It is true that the endocrine glands act as the points of connection, a partnership between a body and its spirit one could say. These connections transform into concrete mentality and physical consciousness. This is why what we think of our bodies is so incredibly important. If we do not love our own body as our living temple to worship, then how can our body respond with loving health? And why should anyone else care about us if we don't care about ourselves? “Learning about the unlimited potential power in the body begins with the understanding of the Kundalini, which is said to lie dormant and coiled three and one half times at the base of the spine.... The chakras are thought to be swirling vortices where energy is transformed, absorbed, filtered and distributed to the incorporeal and physical body. The incorporeal, or etheric, body is said to be an exact replica of the physical body but projects an aura of about one-quarter inch beyond the skin....” —History of Occult by T. Wynn Griffon “A Human Being is part of the Whole, called by us the 'Universe'—a part limited in Time and Space. He experiences himself, his Thoughts and Feelings, as something separate from the rest, a kind of Optical Delusion of His Consciousness. This Delusion is a kind of Prison for us, restricting us to our personal Desires and to affection for a few Persons nearest to us. Our task must be to free ourselves from this Prison by widening our circle of Compassion to embrace all living Creatures and the Whole of Nature in its Beauty. Nobody is able to Achieve this completely, but the striving for such Achievement is in itself a part of the Liberation and Foundation for Inner Security.” —Optical Delusion from Consciousness by Albert Einstein