In Āyurveda, there are three energies responsible for all functions of the universe, they are called: doshas or bodily humours. They are named: Vata, Pitta, and Kapha.
At the moment of conception, a unique proportion of these energies are determined, and this proportion which is unique, defines your constitution. Due to the way we live our lives, these energies can get affected and get out of whack, and that’s how Āyurveda defines all ailments, both mental and physical.
Vata is composed of ether and air. It is the energy of the wind. Responsible for all sorts of movements, including the following qualities: dry, cold, light, rough, subtle, fast, and mobile. For example: “my body is too dry”, “I'm cold all the time”, “I'm bloated and experiencing a lot of gas”, “I'm constantly worried”.
Pitta is composed of fire and water. It is the energy of the fire. Responsible for all transformations, including the following qualities: hot, oily, light, spreading, sharp, etc. For example: “I feel like my stomach is burning”, “I’m always hungry and I sweat easily”, “I have poor vision“, “Grumpy and angry? YES”.
Kapha is composed of water and earth. It's the grounding energy of the earth. Responsible for binding and stability, including the following qualities: cold, oily, heavy, dense, slow, nourishing, etc. For example: “I've always had trouble losing weight”, “I have a large body build”, “Why are you worried? Just admire how beautiful the sky is!”.