Bhagavad Gita
The Bhagavad Gita (“Song of God” or “Song of the Lord”) is among the most important religious texts of Hinduism and easily the best known. It has been quoted by writers, poets, scientists, theologians, and philosophers – among others – for centuries and is often the introductory text to Hinduism for a Western audience.
It is commonly referred to as the Gita and was originally part of the great Indian epic Mahabharata. Its date of composition, therefore, is closely associated with that of the epic – c. 5th-3rd century BCE – but not all scholars agree that the work was originally included in the Mahabharata text and so date it later to c. 2nd century BCE.
The Gita is a dialogue between the warrior-prince Arjuna and the god Krishna who is serving as his charioteer at the Battle of Kurukshetra fought between Arjuna's family and allies (the Pandavas) and those of the prince Duryodhana and his family (the Kauravas) and their allies. This dialogue is recited by the Kauravan counselor Sanjaya to his blind king Dhritarashtra (both far from the battleground) as Krishna has given Sanjaya mystical sight so he will be able to see and report the battle to the king.
The Kauravas and Pandavas are related and there are mutual friends and family members fighting on both sides for supremacy of rule. Accordingly, when Arjuna sees all his former friends and comrades on the opposing side, he loses heart and refuses to take part in a battle which will result in their deaths as well as many others. The rest of the text is the dialogue between the prince and the god on what constitutes right action, proper understanding and, ultimately, the meaning of life and nature of the Divine.
The Gita combines the concepts expressed in the central texts of Hinduism – the Vedas and Upanishads – which are here synthesized into a single, coherent vision of belief in one God and the underlying unity of all existence. The text instructs on how one must elevate the mind and soul to look beyond appearances – which fool one into believing in duality and multiplicity – and recognize these are illusions; all humans and aspects of existence are a unified extension of the Divine which one will recognize once the trappings of illusion have been discarded.
The Gita inspired the Bhakti (“devotion”) Movement which then influenced the development of Buddhism, Jainism, and Sikhism. Krishna explains the path of selfless devotion as one of the paths toward self-actualization, recognition of the truth of existence, and liberation from the cycle of rebirth and death; the other two being jnana (“knowledge”) and karma (“action”). The Hare Krishna Movement of the present day is an expression of Bhakti, and the Gita remains their principal text.
Vedas, Upanishads, & the Three Gunas
Hinduism is known to adherents as Sanatan Dharma (“Eternal Order” or “Eternal Path”) and is informed at its fundamental level by the texts known as the Vedas which also include subtexts known as the Upanishads. The word Veda means “knowledge”, and Upanishad is interpreted to mean to “sit down closely” as though drawing near for instruction from a master. The Vedas convey the essential knowledge of the universe; the Upanishads instruct one on how to use that knowledge.
The vision of the Vedas and Upanishads, in its simplest and most concise form, is that there is a single entity – Brahman – who is the creator of existence and existence itself. Human beings carry a spark of this great Divinity within themselves known as the Atman. The purpose of life is to reach the self-actualization of the Atman which will then bring one into union with Brahman in life after one experiences physical death. One achieves this self-actualization through the performance of one's dharma (duty) in accordance with one's karma (right action) to eventually attain moksha (liberation) and the recognition of Final Truth. If one does not attain self-actualization in a given lifetime, one is reincarnated and must try again.
Source:
https://www.worldhistory.org/Bhagavad_Gita/