THE SHAD-DARSHANAS—HINDU PHILOSOPHY—Part 2
The Orthodox and the Heterodox Systems of Indian Philosophy
The six systems of Indian philosophy or the Shad-Darshanas are the six orthodox systems of philosophy. They are the six ways of looking at the Truth. They are (1) The Nyaya; (2) The Vaiseshika; (3) The Sankhya; (4) The Yoga; (5) The Purva-Mimamsa; and (6) The Uttara-Mimamsa, or the Vedanta.

The orthodox systems of philosophy believe in the authority of the Vedas. The heterodox systems of philosophy do not believe in the authority of the Vedas. The six heterodox systems of philosophy are:
- The Materialistic School of Charvaka;
- The System of the Jainas;
- The School of Presentationists or Vaibhashikas (Buddhistic);
- The School of Representationists or Sautrantikas (Buddhistic);
- The School of Idealism or Yogacharas (Buddhistic); and
- The School of Nihilism of the Madhyamikas (Buddhistic).
The Shad-Darshanas Or The Six Orthodox Schools
The Shad-Darsanas or the six orthodox systems grew directly out of the Vedas. Darsana means literally sight or vision. Darsana means a system of philosophy. The Darsana literature is philosophical. Each Darsana is a way of looking into the Truth; is a standpoint in respect of the Truth.
Gautama Rishi systematised the principles of Nyaya or the Indian logical system. Kanada composed the Vaiseshika Sutras. Kapila Muni founded the Sankhya system. Patanjali Maharshi is the first systematiser of the Yoga school. He composed his Yoga Sutras. The Yoga-Darsana of Patanjali is a celebrated text-book on Raja Yoga. Jaimini, a disciple of Vyasa, composed the Sutras of the Mimamsa school, which is based on the ritual-sections of the Vedas. Badarayana composed his famous Vedanta-Sutras or Brahma-Sutras which expound the teachings of the Upanishads. The different schools of the Vedanta have built their philosophy on the foundation of these Sutras.
Different ways of approach to the same goal
The six schools of thought are like the six different roads which lead to one city. You may go to Bombay by train or aeroplane or motor bus or any other vehicle. Even so, you can reach the goal of life through Yoga, or Vedanta, or any other path. The methods or ways of approach to the Goal are different to suit people of different temperaments, capacities and mental calibre. But they all have one aim, viz., removal of ignorance and its effects of pain and sufferings and the attainment of freedom, perfection, immortality and eternal bliss by union of the individual soul (Jivatman) with the Supreme Soul (Paramatman).
No student of Hinduism ought to be satisfied without acquiring a clear and accurate knowledge of the principal distinguishing characteristics of the six philosophical schools. The more advanced scholar should study the original Sutras in which the doctrines of each school are enunciated. Study of the six schools of philosophy will sharpen the intellect and give you vast knowledge. You will have a clear and comprehensive understanding of the Truth. Each system is a step or rung in the spiritual ladder.
Interrelation between the six systems
The six schools are divided into three groups: (i) The Nyaya and the Vaiseshika, (ii) The Sankhya and the Yoga, and (iii) The Mimamsa and the Vedanta. The Vaiseshika is a supplement of the Nyaya. The Yoga is a supplement of the Sankhya. The Vedanta is an amplification and fulfilment of the Sankhya. Study of Vyakarana (grammar), Mimamsa, Nyaya and Sankhya is necessary to understand the Vedanta. The Nyaya sharpens the intellect and enables the aspirants to grasp the Vedanta. The Nyaya is considered as a prerequisite for all philosophical enquiries.
The Vaiseshika is not very much in honour now. The Nyaya is popular. The Sankhya is not a living faith. The Yoga is practised by a few in its practical form. The Vedanta is the most popular of all the schools today.
The Nyaya and the Vaiseshika will give you an analysis of the world of experience. They arrange all the things of the world into certain kinds or categories (Padarthas). They explain how God has made all this material world out of atoms and molecules. They show the way to attain knowledge of God. The Sankhya will provide you with deep knowledge of Hindu psychology. Kapila Muni was the father of psychology. The Yoga deals with the control of Vrittis, or thought-waves, and with meditation. The Yoga system shows the ways to discipline the mind and the senses. The Yoga will help you to cultivate concentration and one-pointedness of mind and enter into Nirvikalpa Samadhi or the Superconscious State. The Purva-Mimamsa deals with the Karma-Kanda of the Vedas, and the Uttara-Mimamsa with the Jnana-Kanda. The Uttara-Mimamsa is also known as the Vedanta-Darsana. This is the corner-stone of Hinduism. The Vedanta philosophy explains in detail the nature of Brahman or the Eternal Being, and shows that the individual soul is, in essence, identical with the Supreme Self. It gives methods to remove Avidya or the veil of ignorance and to merge oneself in the ocean of bliss or Brahman.
The Nyaya calls ignorance Mithya Jnana, false knowledge. The Sankhya styles it Aviveka, non-discrimination between the real and the unreal. The Vedanta names it Avidya, nescience. Each philosophy aims at its eradication by Knowledge or Jnana. Then one attains eternal bliss or immortality.
By study of Nyaya and Vaiseshika, one learns to utilise his intellect to find out fallacies and to know the material constitution of the world. By study of Sankhya, one understands the course of evolution. By study and practice of Yoga, one gains self-restraint and obtains mastery over mind and senses. By practice of Vedanta, one reaches the highest rung of the ladder of spirituality or the pinnacle of divine glory, oneness with the Supreme Being, by the destruction of ignorance (Avidya).
Vedanta—The Most Satisfactory System Of Philosophy
Some of the doctrines of the Nyaya, the Vaiseshika, the Sankhya and the Yoga are opposed to the teachings of the Vedas. These systems are only superficially based on the Vedas. The Nyaya and the Vaiseshika schools rely too much on human reason, though they accept the Vedas as the supreme authority. Human intellect is frail and finite. It has got its limitations. It functions within time, space and causation. Its findings cannot be infallible. It cannot solve transcendental matters. Vedas only are infallible and authoritative. They contain the revelations or direct intuitional experiences of seers and Rishis. These experiences will tally with the experiences of those who have attained Knowledge of the Self (Brahma-Jnana).
The Vedanta is the most satisfactory system of philosophy. It has been evolved out of the Upanishads. It has superseded all other schools. The Mimamsa school had laid great stress on rituals, or Karma-Kanda. According to the Mimamsa school, Karma or ritual is all-in-all in the Veda. Upasana (worship) and Jnana (knowledge) are only accessories to Karma. This view is refuted by the Vedanta school. According to the Vedanta, Self-realisation (Jnana) is the foremost thing, and ritual and worship are accessories. Karma will take one to heaven which is only an impermanent place of refined sensual enjoyment. Karma cannot destroy the cycle of births and deaths, and cannot give eternal bliss and immortality.
During the time of Sankaracharya, all the six schools of philosophy flourished. Therefore, he had to refute the other systems in order to establish his absolute monism (Kevala Advaita). But, nowadays, Sankhya, Vaiseshika, etc., are in name only.
To be continued…
Source: All About Hinduism by Sri Swami Sivananda
(Sri Swami Sivanandaji is a world-renowned Saint of the Advaita Vedanta and Yoga Darshanas. A medical doctor (Surgeon) by profession, he founded the Divine Life Society which today has hundreds of centres worldwide. Swamiji has written over 200 books and is the Deeksha Guru of World Famous Swami Chinmayanandaji).
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