The Bhagavad Gita is revered as a sacred text of Hindu philosophy. The name 'Bhagavad Gita', when translated into English, literally means 'Song from (the mouth of) God'. Its written format is that of a poem which is 700 verses long, originating from the famous puranic epic Mahabharata (Bhishma Parva chapters 23 40.).
Commonly referred to as The Gita, it is a conversation between Krishna and Arjuna which takes place on a battlefield, just prior to the start of a climactic war. During the conversation, Krishna proclaims that he is God Himself (Bhagavan), and at the request of Arjuna, displays His divine form, which is described as timeless, that leaves the latter awestruck. The conversation summarizes a number of different Yogic and Vedantic philosophies, explaining the meaning and purpose of life and existence. The Bhagavad Gita refers to itself as an 'Upanishad'.
It is not exactly clear when the Bhagavad Gita was written. Astronomical evidence cited in the Mahabharata place the incidents upon which the Gita is based in the year 3137 BCE, while the Puranas suggest a date of c. 1924 BCE. Scholarly estimates place the actual writing of the Gita in the latter half of the 1st millennium BC (roughly 4th century BC), making it a contemporary of the older Upanishads.
The Six Main Schools of Thought
This was a dualistic philosophy. But there are differences between the Samkhya and Western forms of dualism. In the West, the fundamental distinction is between mind and body. In Samkhya, however, it is between the self (purusha) and matter, and the latter incorporates what Westerners would normally refer to as "mind". Samkhya was originally atheistic, but in confluence with its offshoot Yoga later, it accepted God.
But Nyaya is not merely logic for its own sake. Its followers believed that obtaining valid knowledge was the only way to obtain release from suffering. They therefore took great pains to identify valid sources of knowledge and to distinguish these from mere false opinions. According to the Nyaya school, there are exactly four sources of knowledge (pramanas): perception, inference, comparison and testimony.
Knowledge obtained through each of these can of course still be either valid or invalid, and the Nyaya scholars (Naiyanikas) again went to great pains to identify, in each case, what it took to make knowledge valid, in the process coming up with a number of explanatory schemes. In this sense, Nyaya is probably the closest Indian equivalent to contemporary Western analytical philosophy. The later Naiyanikas gave logical proofs for the existence of God (see Ishvara) and also for his uniqueness, especially during their arguments against the Buddhists who at that time were fundamentally atheistic. An important later development in Nyaya is the system of Navya Nyaya (New Logic).
Although the Vaishesika system developed independently from the Nyaya, the two eventually merged because of their closely related metaphysical theories. In its classical form, however, the Vaishesika school differed from the Nyaya in one crucial respect: where Nyaya accepted four sources of valid knowledge, the Vaishesika accepted only perception and inference as being such.
The sage Patanjali wrote an extremely influential text on Raja Yoga (or meditational) entitled the "Yoga Sutra". The most significant difference from Samkhya is that the Yoga school not only incorporates the concept of Ishvara (a personal God) into its metaphysical worldview, which the Samkhya does not, but also upholds Ishvara as the ideal upon which to meditate. This is because Ishvara is the only aspect of Purusha that has not become entangled with prakrti. It also utilizes the Brahman/Atman terminology and concepts that are found in the Upanishads, thus breaking from the Samkhya school by adopting concepts of Vedantic monism.
The Yoga system lays down elaborate prescriptions for gradually gaining physical and mental control and mastery over the "personal self", both body and mind, until one's consciousness has intensified sufficiently to allow for the awareness of one's "real Self" (the soul, or Atman), as distinct from one's feelings, thoughts and actions. Realization of the goal of Yoga is known as moksha, nirvana and samadhi. They all speak to the realization of the Atman as being nothing other than the infinite Brahman. See the articles on Yoga and History of Yoga for an in-depth discussion.
The Mimamsa accepted the logical and philosophical teachings of the other schools, but felt that these paid insufficient attention to right action. They believed that the other schools of thought, which pursued moksha (release) as their ultimate aim, were not completely free from desire and selfishness. In Hinduism, we are all illuminated under the light of god. When we have moksha, we believe that we become closer to god.
According to the Mimamsa, the very striving for liberation stemmed from a selfish desire to be free. Only by acting in accordance with the prescriptions of the Vedas could one attain salvation (rather than liberation) - which includes a belief in the varna and ashrama system. At a later stage, however, the Mimamsa school changed its views in this regard and began to teach the doctrines of God and mukti (freedom). Its adherents then advocated the release or escape from the soul from its constraints through what was known as jnana (enlightened activity). While Mimamsa does not receive much scholarly attention these days, its influence can be felt in the life of the practicing Hindu. All Hindu ritual, ceremony and religious law is influenced by it.
Main article: Advaita Vedanta
Advaita literally means "non-duality." This is the oldest and most widely acknowledged Vedantic school. Its first great consolidator was Adi Shankaracharya (788 CE – 820 CE), who continued the line of thought of the Upanishadic teachers, and that of his teacher's teacher Gaudapada. He wrote extensive commentaries on the major Vedantic scriptures and was successful in the revival and reformation of Hindu thinking and way of life.
According to this school of Vedanta, Brahman is the only reality, and there exists nothing whatsoever which is not Brahman. The appearance of dualities and differences in this world is an superimposition on Brahman, called Maya. Maya is the illusionary and creative aspect of Brahman, which causes the world to arise.Maya is neither existent nor non-existent, but appears to exist temporarily, as in case of any illusion (for example mirage).
When a person tries to know Brahman through his mind, due to the influence of Maya, Brahman appears as God (Ishvara), separate from the world and from the individual. In reality, there is no difference between the individual soul (Jivatman) and Brahman. The spiritual practices such as: devotion to God, meditation & self-less action etc. purifies the mind and indirectly helps in perceiving the real. One whose vision is obscured by ignorance he does not see the non-dual nature of reality; as the blind do not see the resplendent Sun. Hence, the only direct cause of liberation is self-knowledge which directly removes the ignorance. After realisation, one sees one's own self and the Universe as the same, non-dual Brahman, Existence-Knowledge-Bliss-Absolute.
Main article: Vishishtadvaita
Ramanujacharya (c. 1037–1137 CE) was the foremost proponent of the philosophy of Vishishtadvaita or qualified non-dualism. Vishishtadvaita advocated the concept of a Supreme Being with essential qualities or attributes. Vishishtadvaitins argued against the Advaitin conception of Brahman as an impersonal empty oneness. They saw Brahman as an eternal oneness, but also as the source of all creation, which was omnipresent and actively involved in existence. To them the sense of subject-object perception was illusory and a sign of ignorance. However, the individual's sense of self was not a complete illusion since it was derived from the universal beingness that is Brahman. Ramanuja saw Vishnu as a personification of Brahman.
Dvaita Vedanta (dualistic conclusions of the Vedas) school of philosophy was founded by Madhvacharya (c. 1238–1317 CE). It espouses dualism by theorising the existence of two separate realities. The first and the more important reality is that of Vishnu or Brahman. Vishnu is the supreme Self, God, the absolute truth of the universe, the independent reality. The second reality is that of dependent but equally real universe that exists with its own separate essence. Everything that is composed of the second reality, such as individual soul (Jiva), matter, etc. exist with their own separate reality. The distinguishing factor of this philosophy as opposed to Advaita Vedanta (monistic conclusion of Vedas) is that God takes on a personal role and is seen as a real eternal entity that governs and controls the universe.
Five further distinctions are made— (1) Vishnu is distinct from souls; (2) Vishnu is distinct from matter; (3) Souls are distinct from matter; (4) A soul is distinct from another soul, and (5) Matter is distinct from other matter. Souls are eternal and are dependent upon the will of Vishnu. This theology attempts to address the problem of evil with the idea that souls are not created. Because the existence of individuals is grounded in the divine, they are depicted as reflections, images or even shadows of the divine, but never in any way identical with the divine. Salvation therefore is described as the realisation that all finite reality is essentially dependent on the Supreme.
Dvaitadvaita was proposed by Nimbarka, a 13th-century Vaishnava Philosopher from the Andhra region. According to this philosophy there are three categories of existence: Brahman, soul, and matter. Soul and matter are different from Brahman in that they have attributes and capacities different from Brahman. Brahman exists independently, while soul and matter are dependent. Thus soul and matter have an existence that is separate yet dependent. Further, Brahman is a controller, the soul is the enjoyer, and matter the thing enjoyed. Also, the highest object of worship is Krishna and his consort Radha, attended by thousands of gopis, or cowherdesses; of the celestial Vrindavana; and devotion consists in self-surrender.
Shuddhadvaita is the "purely non-dual" philosophy propounded by Vallabhacharya (1479–1531 CE). The founding philosopher was also the guru of the Vallabhā sampradāya ("tradition of Vallabh") or Puśtimārg ("The path of grace"), a Hindu Vaishnava tradition focused on the worship of Krishna.
Acintya Bheda Abheda
Main article: Achintya Bheda Abheda
Chaitanya Mahaprabhu (1486–1534), stated that the soul or energy of God is both distinct and non-distinct from God, whom he identified as Krishna, Govinda, and that this, although unthinkable, may be experienced through a process of loving devotion (bhakti). He followed the Dvaita concept of Sri Madhva. This philosophy of "inconceivable oneness and difference".
Early history of Shaivism is difficult to determine. However, the Śvetāśvatara Upanishad (400 – 200 BCE) is considered to be the earliest textual exposition of a systematic philosophy of Shaivism. Shaivism is represented by various philosophical schools, including non-dualist (abheda), dualist (bheda), and non-dualist-with-dualist (bhedābheda) perspectives. Vidyaranya in his works mentions three major schools of Shaiva thought— Pashupata Shaivism, Shaiva Siddhanta and Pratyabhijña (Kashmir Shaivism).
Pashupata Shaivism is the oldest of the major Shaivite schools. The philosophy of Pashupata sect was systematized by Lakulish in the 2nd century CE. Pashu inPashupati refers to the effect (or created world), the word designates that which is dependent on something ulterior. Whereas, Pati means the cause (or prinripium), the word designates the Lord, who is the cause of the universe, the pati, or the ruler. Pashupatas disapproved of the Vaishnava theology, known for its doctrine servitude of souls to the Supreme Being, on the grounds that dependence upon anything could not be the means of cessation of pain and other desired ends. They recognised that those depending upon another and longing for independence will not be emancipated because they still depend upon something other than themselves. According to Pashupatas, soul possesses the attributes of the Supreme Deity when it becomes liberated from the 'germ of every pain'.
Pashupatas divided the created world into the insentient and the sentient. The insentient was the unconscious and thus dependent on the sentient or conscious. The insentient was further divided into effects and causes. The effects were of ten kinds, the earth, four elements and their qualities, colour etc. The causes were of thirteen kinds, the five organs of cognition, the five organs of action, the three internal organs, intellect, the ego principle and the cognising principle. These insentient causes were held responsible for the illusive identification of Self with non-Self. Salvation in Pashupata Shaivism involved the union of the soul with God through the intellect.
Considered normative Tantric Shaivism, Shaiva Siddhanta provides the normative rites, cosmology and theological categories of Tantric Shaivism. Being a dualistic philosophy, the goal of Shaiva Siddhanta is to become an ontologically distinct Shiva (through Shiva's grace). This tradition later merged with the Tamil Saiva movement and expression of concepts of Shaiva Siddhanta can be seen in the bhakti poetry of the Nayanars.
Kashmir Shaivism arose during the eighth or ninth century CE in Kashmir and made significant strides, both philosophical and theological, until the end of the twelfth century CE. It is categorised by various scholars as monistic idealism (absolute idealism, theistic monism, realistic idealism, transcendental physicalism or concrete monism). It is a school of Śaivism consisting of Trika and its philosophical articulation Pratyabhijña.
Even though, both Kashmir Shaivism and Advaita Vedanta are non-dual philosophies which give primacy to Universal Consciousness (Chit or Brahman), in Kashmir Shavisim, as opposed to Advaita, all things are a manifestation of this Consciousness. This implies that from the point of view of Kashmir Shavisim, the phenomenal world (Śakti) is real, and it exists and has its being in Consciousness (Chit). Whereas, Advaita holds that Brahman is inactive (niṣkriya) and the phenomenal world is an illusion (māyā). The objective of human life, according to Kashmir Shaivism, is to merge in Shiva or Universal Consciousness, or to realize one's already existing identity with Shiva, by means of wisdom, yoga and grace.