Advaita definitions of the subtle body
We will look at the definitions from the standard glossary used in Advaita, the Tattva bodha:
That which is composed of five Mahabhutas (elements) prior to their undergoing the
process of Panchikarana, born of good actions of the past the instruments for
experiences of pleasure, pain etc. constituted of the seventeen items namely: the five
Jnanendriyas, (sense organs) the five karmendriyas, (the organs of action) the five Prans
(Prana, Apana, Udana, Samana and Vyana) the mind and the intellect is the Subtle body
Composed of the 5 subtle elements: It is composed of the 5 subtle elements(tanmatras) in their pure unmixed form, hence each element has their purest quality: re air atoms(touch) fire atoms(colour) water atoms(taste) and the only non-atomic element ether(sound) When they undergo grossification(panchkarana) each atom splits into 1/2 and 1/8th of each join with the other atoms to form the gross versions re: Gross fire atom is 50% subtle fire atom, and 1/8th of air, water, earth and ether. The entire subtle world and the subtle body is made up of these subtle atoms in their purest forms. This is why the astral worlds are far more vivid in colour, sound etc and astral beings like apsaras have heavenly beauty or ghandarvas have heavenly voices.
Born of good actions.:The subtle body like the gross body evolves based on current actions, and the actions performed in the gross body, which leave karmic imprints in the subtle body causing the subtle body to refine. For example a single celled organism has a very basic subtle body, but through evolution its subtle body becomes more complex and its instruments more refined. The evolution proceeds from one sense organisms to 5 sense organisms, to 5 sense organs with minds. Hence, from the point of view of sadhana, the subtle body is the most important, because it is the subtle body that will bear fruits of any sadhana done in the current gross body over to the next. The gross body will perish at death, but the subtle body will carry everything over to the next. Hence, the wise consider the subtle body the most important body. Becoming aware of the subtle body is the first most important milestone of sadhana.
Constituted of the 17 instruments: re:
5 sense organs:
Hearing, manifest through the ears of gross body
Touching, manifest through the skin of gross body
Seeing, manfiest through the eyes of gross body
Tasting, manifest through the tongue of gross body
Smelling, manifest through the nose of gross body
5 motor organs:
Speaking, manifest through the vocal chords and mouth in the gross body
Grasping, manifest through the hands and limbs in the gross body
Moving, manifest through the legs in the gross body
Excreting, manifest through the anus in the gross body
Reproducing, manifest through the genitals in the gross body
5 Pranas or circulation system
Prana, manifest through the respiration system in the gross body
Apana, manifest through the the execretion system in the gross body
Vyana, manifest through the nervous system in the gross body
Samana, manifest in the metabolic and digestive system in the body
Udana, manifest through the growth, speech expression systems in the body
Mind, manifest through the reptilian brain in the gross body
Intellect, manifest through the neo cortex in the gross body
Ahamkara, manifest through the heart in the gross body
These systems are present in increasingly refined forms in all living organisms from the single celled bacteria to human beings, which refutes the Darwinian theory of natural selection, the blueprint for the evolution of gross bodies comes already from the subtle body. Here is the very first cell already has all these systems in perfect functioning order:
Cells may be self-sustaining units of life, but they don't live in isolation. Their survival depends on receiving and processing information from the outside environment, whether that information pertains to the availability of nutrients, changes in temperature, or variations in light levels. Cells also can communicate with one another — and change their own internal workings in response — by way of a variety of chemical and mechanical signals. In multicellular organisms, cell signaling allows for specialization of groups of cells. Multiple cell types can then join together to form tissues, such as muscle, blood, and brain tissue. In single-celled organisms, signaling allows populations of cells to coordinate with one another and work as a team to accomplish tasks no single cell could carry out on its own.
"Bacteria sense a lot of different things. But assume it's a sugar molecule that a bacterium needs as a nutrient -- even a 0.1 percent change in concentration can be detected, and this sensitivity is maintained over five orders of magnitude in nutrient concentration," said Brian Crane, assistant professor of chemistry and chemical biology and corresponding author of the paper. "Biologically, I know of no other system that is so sensitive over such a large range.
Therefore natural selection is refuted, living organisms did not just appear out of some chemical soup by random chance, they appeared already in a purely functioning state with all the instruments functioning in perfect order. The blueprint for the design comes from the subtle body.
The pranas are key in controlling the gross body, because they link up the subtle body with the gross body, allowing information to travel from the subtle body to the gross body and vis versa e.g. If you want to lift your hands, the intellect in the subtle body sends the signal to the mind which processes the signal, it then activates the motor organs of grasping which then activates the gross organ of grasping. This is why there is a milisecond delay between the signal from your brain to your hand. As the pranas are the direct link between your subtle body and gross body, through pranayama both the subtle body and gross body can be controlled. However, trying to control it purely through thought is close to impossible for most people, because the level of intellect is not directly linked to gross body. This kind of control is only achieved by highly advanced yogis.
The 5 Koshas
The koshas are the old Upanishadic schema of classifying the layers that make up a person, it is NOT a classification into bodies. The classification into bodies is developed by Samkhya to account for the carriers that carry the organs. If you divide the human body into layers, each layer is just a layer of the same body and not separate bodies. In the Upanishads the Koshas are divided into what are later resolved into their respective bodies by Samkhya
Annamaya kosha or Food layer:
What is the food sheath? That which is born of food, which grows by food, and goes
back to earth which is of the nature of food, is called the Food Sheath, this is the gross
body
Pranamaya kosha or Vital layer:
What is the Vital Air Sheath? The five physiological functions such as Prana etc.(Prana,
Apana, Vyana, Udana and Samana) together with the five organs of action namely speech
etc., form the Pranamaya Kosa the Vital Air Sheath.
Manomaya kosha or Mental layer:
What is the mental Sheath? The mind and the five organs of perception together form
the Mental Sheath
Vijnanamaya kosha or Intellectual layer
What is the intellectual Sheath?
The intellect, along with the five organs of perception, together form the intellectual
Sheath.
Anandamaya kosha or Bliss layer
What is the Bliss Sheath? Established in Avidya, which is of the form of the Causal
body, of impure nature united with the Vrittis (modifications) like Priya, Moda and
Pramoda.
As you can see the Advaita scheme synthesises both the Upanishadic schema with the Samkhya schema to come up with the three bodies(sharira) schema. It is due to this confusion that modern new-age schemas posit as many as 5 bodies. This web site does a good job of tallying them up and showing the correspondences with the subtle body descriptions across traditions:
The Subtle Body - some possible correspondences
As you can see they all agree the first body is the gross or physical body, the next is the etheric/pranic body, then follows the mental, astral or emotional body, then the intellectual or higher mental body and finally the spiritual body. That is to say that they each exist on a different plane of the universe and are differentiated by their character; gross(by physicality) pranic(by energy) mental/emotional(by desires, feelings) higher mental by thought and causal by pure intelligence.
In the Advaita scheme we simply resolve the into three bodies because they correspond to the three states of experience: Waking(Gross body) Dream(Subtle body) and Dreamless sleep(Causal body, discussed next) We do not need to posit several carriers for the instruments, otherwise we would have a bizarre situation where there is a separate carrier for the pranas and another for the sense organs and another for the mind, and if each is an independent body, how could they communicate with each other? Therefore, it is not the case they are separate bodies.
As you can see the Hindu shastra have the most clearest and scientific descriptions of the subtle body. Although the knowledge of the subtle body is present in non-Dharmic traditions, it is not as clear and scientific as it is in the original Hindu Aryan culture.
Cont.