Ayurveda is an ancient system of life (ayur) knowledge (veda) arising in India thousands of years ago. Ayurveda theory evolved from a deep understanding of creation. The great rishis or seers of ancient India came to understand creation through deep meditation and other spiritual practices. The rishis sought to reveal the deepest truths of human physiology and health. They observed the fundamentals of life, organized them into an elaborate system, and compiled India's philosophical and spiritual texts, called Veda of knowledge.Ayurveda was first recorded in the Veda, the world's oldest existing literature. The three most important Veda texts containing the original and complete knowledge of Ayurveda, believed to be over 1200 years old, is still in use today. These Ayurvedic teachings were customarily passed on orally from teacher to student for over 1000 years. The wisdom of Ayurveda is recorded in Sanskrit, the ancient language of India that reflects the philosophy behind Ayurveda and the depth within it.Ayurveda emphasizes more on prevention of diseases rather than its cure. The treatment given is not only to the ailments or the affected parts, but to the person as a whole. This creates an environment for purifying the body naturally, which eliminates all toxic imbalances, enabling to regain natural resistance from diseases and attain good health. Ayurveda provides detailed instructions of daily regimen, seasonal regimen, food, sleep and sexual behavior so that health can be optimized and illness healed. Ayurveda is grounded in metaphysics of the five elements, earth (prithvi), water (jal), fire (agni), air (vayu) and ether or space (akash). Ayurveda stresses a balance of three elemental energies or humors: vata, pitta and kapha.