Ayurveda is establishing balance in body and mind. It's basis is in the 5 element theory( Pancha maha bhutha).
Our body has all five elements which form it's Prakruthi (Nature)
generally one or combination of two elements will be dominant and determines the body nature, attitude, lifestyle and inclination of the personality and they are called 3 Doshas ( 3 Distortions), Vata, Pitta and Kapha
When a Dosha is dominant, it's important for other two to maintain balance and that is called Aarogya (well Being).
(Eg) If you are a Vata type Person, It's important that Kapha and Pitta are in Balance and this your Vaidya ( Ayurvedic Physician) can help you with..