The word Veda literally means knowledge.

The origin of the Vedas cannot be traced to a historical date. They were revealed to Rishis many thousands of years ago directly from the God. The Rishis heard the words uttered in the clarity of their awakened consciousness. These sounds originated from the GOD. 

The Vedas impart divine knowledge - knowledge that was given to mankind by God. The Vedas are divinely revealed stanzas which confer wisdom about the nature of God and human beings.

The Vedas speak of the relationship of the creature and the creator, the bond between oneself and God.

The Vedas teaches the truth that cannot be revised or reversed by the passage of time through the three stages - past, present and future.

The Veda is the collation of words that are truth, which were visualized by four Rishis or sages who had attained the capacity to receive them into their enlightened awareness. The four Rishis were Agni, Vaayu, Aditya and Angiras. In reality the words of the Vedas are that of God, the supreme person. Therefore the Vedas are are said to be Divine knowledge ie; apaurusheya, of non-human authorship.

They are four in number and form the oldest book in the library of the world. They are the oldest sacred texts not only for Hinduism but for the entire world.    

The Vedas are the root of the Hindu Religion. Hinduism has developed from the teachings contained in the Vedas.

The four Vedas are known as the RIG VEDA, the YAJUR VEDA, the SAMA VEDA and the ATHARVA VEDA. 

The Rig Veda is known as the book of science, the Yajur Veda the book of action and the Sama Veda the book of devotionand the Atharva Veda the book of knowledge. Knowledge is not a monopoly of any country or community. It is a common patrimony of the human race given through Sanskrit, a language as old as creation. 

Each Veda has two parts, the Samhita and the Brahmanas. The Samhita consists of mantras.  These mantras are difficult to interpret, so the Brahmanas have been given this task.

The Samhita and Brahmanas are often known as “karma kand”, which is the part of the Vedas that deals with the rituals. Vedic literature also includes "gyan kanda", and included in the Gyan Kanda are the Aranyakas and the Upanishads. These are identified with various Vedas. 

We can therefore have a narrow definition of a Veda as well as a broad one. The narrow definition would take the word Veda to mean Samhita alone. The broad definition would include, in addition to the Samita's, the associated Brahmanas, Aranyakas and Upanishads.

Om yam medham devaganah pitarashcho pasate |
Taya mamadya medhaya’gne medhavinam kuru ||

O God! That wisdom which the sages and scholars long for;
With that wisdom, O God, with your truthful speech, make me wise today