Veda in the context of "Religious texts"

Astronomy has a long history in the Indian subcontinent, stretching from pre-historic to modern times. Some of the earliest roots of Indian astronomy can be dated to the period of Indus Valley civilisation or earlier. Astronomy later developed as a discipline of Vedanga, or one of the "auxiliary disciplines" associated with the study of the Vedas dating 1500 BCE or older. The oldest known text is the Vedanga Jyotisha, dated to 1400–1200 BCE (with the extant form possibly from 700 to 600 BCE).

Indian astronomy was influenced by Greek astronomy beginning in the 4th century BCE and through the early centuries of the Common Era, for example by the Yavanajataka and the Romaka Siddhanta, a Sanskrit translation of a Greek text disseminated from the 2nd century.

Guru (/ˈɡuːruː/ Sanskrit: गुरु; IAST: guru) is a Sanskrit term for a "mentor, guide, expert, or master" of certain knowledge or field. In pan-Indian traditions, a guru is more than a teacher: traditionally, the guru is a reverential figure to the disciple (or shisya in Sanskrit, literally seeker [of knowledge or truth]) or student, with the guru serving as a "counsellor, who helps mould values, shares experiential knowledge as much as literal knowledge, an exemplar in life, an inspirational source and who helps in the spiritual evolution of a student". Whatever language it is written in, Judith Simmer-Brown says that a tantric spiritual text is often codified in an obscure twilight language so that it cannot be understood by anyone without the verbal explanation of a qualified teacher, the guru. A guru is also one's spiritual guide, who helps one to discover the same potentialities that the guru has already realized.

The oldest references to the concept of guru are found in the earliest Vedic texts of Hinduism. The guru, and gurukula – a school run by guru, were an established tradition in India by the 1st millennium BCE, and these helped compose and transmit the various Vedas, the Upanishads, texts of various schools of Hindu philosophy, and post-Vedic Shastras ranging from spiritual knowledge to various arts so also specific science and technology. By about mid 1st millennium CE, archaeological and epigraphical evidence suggest numerous larger institutions of gurus existed in India, some near Hindu temples, where guru-shishya tradition helped preserve, create and transmit various fields of knowledge. These gurus led broad ranges of studies including Hindu scriptures, Buddhist texts, grammar, philosophy, martial arts, music and painting.

Brahma (Sanskrit: ब्रह्मा, IAST: Brahmā) is a Hindu god, referred to as "the Creator" within the Trimurti, the trinity of supreme divinity that includes Vishnu and Shiva. He is associated with creation of everything, knowledge, and the Vedas. Brahma is prominently mentioned in creation legends. In some Puranas, he created himself in a golden embryo known as the Hiranyagarbha.

Brahma is frequently identified with the Vedic god Prajapati. During the post-Vedic period, Brahma was a prominent deity and his sect existed; however, by the 7th century, he had lost his significance. He was also overshadowed by other major deities like Vishnu, Shiva, and Mahadevi and demoted to the role of a secondary creator, who was created by the major deities.

The Atharvaveda or Atharva Veda (Sanskrit: अथर्ववेद, IAST: Atharvaveda, from अथर्वन्, "priest" and वेद, "knowledge") or is the "knowledge storehouse of atharvans, the procedures for everyday life". The text is the fourth Veda, and is a late addition to the Vedic scriptures of Hinduism.

The language of the Atharvaveda is different from Rigvedic Sanskrit, preserving pre-Vedic Indo-European archaisms. It is a collection of 730 hymns with about 6,000 mantras, divided into 20 books. About a sixth of the Atharvaveda texts adapt verses from the Rigveda, and except for Books 15 and 16, the text is mainly in verse deploying a diversity of Vedic meters. Two different recensions of the text – the Paippalāda and the Śaunakīya – have survived into modern times. Reliable manuscripts of the Paippalada edition were believed to have been lost, but a well-preserved version was discovered among a collection of palm leaf manuscripts in Odisha in 1957.

Samhita (IAST: Saṃhitā) literally means "put together, joined, union", a "collection", and "a methodical, rule-based combination of text or verses". Saṃhitā also refers to the most ancient layer of text in the Vedas, consisting of mantras, hymns, prayers, litanies and benedictions.

Parts of Vedic Samhitas constitute the oldest living part of Hindu tradition.

Upasana (Sanskrit: उपासना upāsanā) literally means "worship" and "sitting near, attend to". It refers to the worship of, or meditation on, formless things, such as Absolute Self, the Holy, the Atman (Soul) Principle, distinguishing meditative reverence for an internalized and intellectual concept from earlier forms of physical worship, actual sacrifices and offerings to Vedic deities.

The term also refers to one of three khaṇḍa (खण्ड, parts) of Vedas, one that focuses on worship or meditation. The other two parts of Vedas are called Aranyakas and Upanishads, sometimes identified as karma-khaṇḍa (कर्म खण्ड, ritualistic sacrifice section) and jñāna-khaṇḍa (ज्ञान खण्ड, knowledge, spirituality section).

Gāthā is a Sanskrit term for 'song' or 'verse', especially referring to any poetic metre which is used in legends or folklores, and is not part of the Vedas but peculiar to either Epic Sanskrit or to Prakrit. The word is originally derived from the Sanskrit/Prakrit root gai, which means 'to speak, sing, recite or extol', cognate to the Avestan term gatha.

Pururavas (Sanskrit: पुरूरवस्, Purūravas) is a character in Hindu literature, a king who served as the first of the Lunar dynasty.

According to the Vedas, he is a legendary entity associated with Surya (the sun) and Usha (the dawn), and is believed to reside in the middle region of the cosmos. The Rig Veda (X.95.18) states that he was a son of Ilā and was a pious ruler. However, the Mahabharata states that Ila was both his mother and his father. According to the Vishnu Purana, his father was Budha, and he was ancestor of the tribe of Pururavas, from whom descended the Yadavas, Kauravas, and Pandavas of Mahābhārata.

The Saptarshi (Sanskrit: सप्तर्षि, lit. 'Seven sages' IAST: Saptarṣi) are the seven seers of ancient India who are extolled in the Vedas, and other Hindu literature such as the Skanda Purana. The Vedic Samhitas never enumerate these rishis by name, although later Vedic texts such as the Brahmanas and Upanisads do, so these constellations are easily recognizable.