Ayurveda is applicable to every living thing, as implied by its name, the science of life. Vedic sciences attribute life to more things than we normally do - the things such as air, wind, fire, the earth, planets, stars, etc. are all thought to possess conscience like living beings.
The basic premise of Ayurveda is that the entire cosmos or universe is part of one singular absolute. Everything that exists in the vast external universe (macrocosm), also appears in the internal cosmos of the human body (microcosm). The human body consisting of 50-100 million cells, when healthy, is in harmony, self-perpetuating and self-correcting just as the universe is. The ancient Ayurveda text, Charaka, says, "Man is the epitome of the universe. Within man, there is as much diversity as in the world outside. Similarly, the outside world is as diverse as human beings themselves." In other words, all human beings are a living microcosm of the universe and the universe is a living macrocosm of the human beings.