The fundamental principles and theorems of Ayurveda are time tested and evaluated. The basic principles of Ayurveda about life, nature, spirituality and medicine are derived from the refined knowledge. Atharva Veda is one of the four Authoritative texts called the Vedas. Ayurveda is known as the sub treaty (Upa-Veda) of Atharva Veda. It is the first ever fundamental systematic and scientific medical science known to mankind. Vedanta is philosophy which believes that liberation can be attained by knowing the Atma (soul) as the source and creator of this physical body and world.Ayurveda is the ancient life science of Indian origin. With the disappearance of families who were the upholders of Vedas and Upanishads, a major portion of Vedic and Upanishadic literature is lost. Hence, it means sitting down near the teacher ‘guru-shishya param-para’ or ‘confidential communication’. The word Upanishad is derived from ‘Upa’ with suffixes as ‘Ni’ and ‘sad’, meaning that something known by ‘sitting down near’. The Upanishads are also called ‘Vedantas’ or the one that includes the knowledge of Vedas. Smriti means which is remembered or author by an individual. Vedas & Upanishads are Shruti Scriptures. Shruti means that which has been heard or communicated by a tradition guru-shishya param-para with no starting point. All stages of human life are standing on the spiritual wisdom of Vedas applicable in daily life for the goodness of humankind till today. Vedas are touching all aspects of human life, including science, economics and politics. He is more of a person who compiled and organised the Vedas into 4 categories for everyone’s benefit. island) also known as Veda-Vyasa or Maharishi-Vyasa who is credited as a possible author is not an “author” (If you have noticed the Vyasa appears at many stages of Mahabharata which is also written by him). Krishna Dvaipāyana (Krishna – dark complexion and Dvaipāyana – birthplace i.e. The Vedas are the first “open source” knowledge system that ever existed. Unlike the scriptures of other religions, the Vedas are not thought to have been revealed to a certain specific person/messenger/ leader or persons at a specific historical moment they are believed to have always existed in time and were held by sages in deep meditative states at some point. There was widespread prosperity and remarkable social stability. It was the golden age for Bharat (India). The Vedas contain thousands of hymns in praise of the Gods. The Vedas describe about powerful, spiritual people and clans. Therefore, the holy texts had to be composed well before 2000 BCE (by which time the river had dried up). We know that the Rig Veda describes the Sarasvati as the “most mighty of rivers” flowing from the Himalayan mountains to the ocean. The relationship between the people of the Indus-Sarasvati civilization and those who composed the Vedas is not clearly understood. It was passed on through the guru-shishya param-para/lineage over millennia. Students might spend years learning these scriptures. The Vedas were not written down but memorized. Sanatanis regard them as spoken by God to the rishis and henceforth. The central holy books of Sanatan Dharam are the 4 Vedas. Ved is considered to be aakasha-vaani meaning a sound originated from cosmos/space. Vedas believes that knowledge is infinite/eternal, just like GOD is eternal hence is the knowledge. Vedas comes from the root sound of Vid meaning knowledge.