From the traditional Ayurvedic perspective, the body is also understood through three broad categories: functional units or dosha, tissues or dhātu, and excretory products or mala. Substances are also described according to different characteristics and properties within the traditional system.
These include taste (rasa), potency or energetic nature (vīrya), post-digestive effect (vipāka), qualities (guṇa) and special properties or effects (prabhāva). These terms belong to the traditional Ayurvedic pharmacological model and should not automatically be interpreted as equivalent to pharmacological properties established by modern science.
The 5 elements according to Ayurveda
According to the Ayurvedic tradition, the five elements — earth, water, air, fire and space — combine to form the different perceptible substances. In this model, each substance is understood as resulting from a combination of the five elements in different proportions, with one of them considered predominant.
Thus, water is traditionally described as containing all five elements, with water considered predominant. This description belongs to the philosophical and traditional model of Ayurveda and does not constitute a scientific description of the chemical composition of water or other substances.
In Ayurvedic theory, earth (pṛthvī) is associated with consolidation and stability, water (āpas) with lubrication and moisture, air (vāyu) with movement and separation, fire (agni) with transformation, and space (ākāśa) with that which allows the existence of spaces or intervals.
These meanings should be understood as associations within the traditional model of the five elements, rather than as physiologically demonstrated mechanisms.
The five elements and the senses
In the Ayurvedic tradition, the five elements are presented in an order ranging from the most subtle to the grossest, from space (ākāśa) to earth (pṛthvī).
Each element is traditionally associated with a principal sensory property:
- Space (ākāśa) — associated with sound;
- Air (vāyu) — associated with touch;
- Fire (agni) — associated with form and colour;
- Water (āpas) — associated with taste;
- Earth (pṛthvī) — associated with smell.
According to this traditional model, each element also includes the sensory properties attributed to the elements that precede it. Thus, earth is traditionally associated not only with smell, but also with taste, form and colour, touch and sound.
These correspondences form part of Ayurvedic theory concerning the elements and should not be confused with a contemporary explanation of the physiology of the senses.
The five elements and bodily functions according to the Ayurvedic tradition
In Ayurvedic theory, different parts of the body, as well as certain functions and qualities, are traditionally related to the five elements.
Space (ākāśa) is traditionally related to the ears, the voice and the spaces or cavities of the body.
Air (vāyu) is traditionally associated with touch, the skin, breathing, movement and different processes related to the organisation and movement of tissues.
Fire (agni) is traditionally associated with form and colour, the eyes, vision, digestion and heat.
Water (āpas) is traditionally related to taste, the tongue, softness, moisture and certain qualities described within the Ayurvedic model as cold or oily.
Earth (pṛthvī) is traditionally associated with smell, the nose, weight, stability and form.
These associations belong to the traditional Ayurvedic classification system and should not be interpreted as claims that the five elements directly control these structures or functions according to modern physiology.
The five elements and the Doshas
Within Ayurvedic theory, there is a fundamental relationship between the five elements and the three Doshas.
According to the Ayurvedic tradition:
- Vata is traditionally associated mainly with air (vāyu) and space (ākāśa);
- Pitta is traditionally associated mainly with fire (agni);
- Kapha is traditionally associated mainly with water (āpas) and earth (pṛthvī).
These relationships form part of the traditional model of the Doshas. They should not be interpreted as direct equivalents of Vata, Pitta or Kapha with specific physiological systems recognised by contemporary medicine.
The five elements and the senses in Ayurvedic theory
Ayurvedic theory also establishes a traditional relationship between the elements and the senses:
- Space (ākāśa) — ear and hearing;
- Air (vāyu) — skin and touch;
- Fire (agni) — eyes and vision;
- Water (āpas) — tongue and taste;
- Earth (pṛthvī) — nose and smell.
These correspondences form part of the traditional conceptual structure of Ayurveda and should be understood within this historical and philosophical context.
Evidence and safety
The five elements, the Doshas and their relationships belong to the traditional model of Ayurveda. The historical existence of these concepts does not, in itself, constitute scientific evidence that they directly correspond to physiological or anatomical mechanisms recognised by contemporary medicine.
Scientific research into Ayurveda produces variable results depending on the practice or preparation studied, and the quality of the evidence is not uniform. The National Center for Complementary and Integrative Health (NCCIH) notes that there are relatively few well-designed clinical trials of Ayurvedic approaches.
Some Ayurvedic preparations may also present risks, including the possibility that they contain lead, mercury or arsenic in potentially toxic amounts. Safety should therefore be assessed according to the specific preparation and its source.
Continuing the Ayurvedic Medicine series
For more information on this subject, consult the other articles in this series on our blog:
- Ayurvedic Medicine – Pt.1 – Introduction
- Ayurvedic Medicine – Pt.3 – The Doshas: Vata, Pitta and Kapha
- Ayurvedic Medicine – Pt.4 – Vata, Pitta or Kapha? Discover Your Predominant Dosha
- Ayurvedic Medicine – Pt.5 – The Importance of Taste in Your Life
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