The Rigveda is the oldest and most sacred text of Hinduism. It is a collection of hymns and prayers dedicated to various deities.

The Vedas are written in Sanskrit, an ancient Indo-Aryan language.

The Bhagavad Gita is not one of the four Vedas. It is a part of the Mahabharata, one of the two major Sanskrit epics of ancient India.

The Yajurveda is primarily concerned with rituals and ceremonies. It contains instructions for performing various religious rituals.

Indra is a prominent deity mentioned in the Rigveda. He is the god of thunder, rain, and war.

The Samaveda is primarily composed of devotional hymns. It is used in religious rituals and ceremonies.

The Atharvaveda is a collection of magical spells and incantations. It is used for healing, protection, and other practical purposes.

The Upanishads are primarily concerned with philosophy and metaphysics. They explore the nature of reality, the soul, and the relationship between the individual and the divine.

Karma, Dharma, Moksha, and Samsara are all key concepts in Vedic philosophy.

The ultimate goal of a Hindu according to the Vedas is Moksha, which is liberation from the cycle of birth, death, and rebirth.

The Yajnopavita is a sacred thread worn by Hindu men. It is a symbol of their spiritual initiation and commitment to their religious duties.

The Upanishads are written in Sanskrit, an ancient Indo-Aryan language.

Brahman is a prominent deity mentioned in the Upanishads. It is the ultimate reality and the source of all existence.

The Gayatri Mantra is a sacred prayer recited by Hindus daily. It is the most important hymn in the Rigveda and is believed to have the power to purify the mind and soul.

The Ramayana is a collection of stories and legends about ancient Indian kings and heroes. It is one of the two major Sanskrit epics of ancient India.