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Ver debajo la lista y enlaces a los principales Upanishads.


Introducción a los Upanishads

Even though the Upanishads do not offer a single comprehensive system of thought, they do develop some basic general principles. Some of these principles are samsara, karma, dharma and moksha. These principles form a metaphysical scheme which was shared with varying adjustments made by most Indian religions and philosophers.

The concept of Samsara is reincarnation, the idea that after we die our soul will be reborn again in another body. Perhaps in an animal, perhaps as a human, perhaps as a god, but always in a regular cycle of deaths and resurrections.

Another concept is Karma, which literally means “action”, the idea that all actions have consequences, good or bad. Karma determines the conditions of the next life, just like our life is conditioned by our previous karma. There is no judgement or forgiveness, simply an impersonal, natural and eternal law operating in the universe. Those who do good will be reborn in better conditions while those who are evil will be reborn in worse conditions.

Dharma means “right behaviour” or “duty”, the idea that we all have a social obligation. Each member of a specific caste has a particular set of responsibilities, a dharma. For example, among the Kshatriyas (the warrior caste), it was considered a sin to die in bed; dying in the battlefield was the highest honour they could aim for. In other words, dharma encouraged people of different social groups to perform their duties the best they could.

Moksha means “liberation” or release. The eternal cycle of deaths and resurrection can be seen as a pointless repetition with no ultimate goal attached to it. Seeking permanent peace or freedom from suffering seems impossible, for sooner or later we will be reborn in worse circumstances. Moksha is the liberation from this never ending cycle of reincarnation, a way to escape this repetition. But what would it mean to escape from this cycle? What is it that awaits the soul that manages to be released from samsara? To answer this question we need to look into the concept of atman and Brahman.

The Upanishads tell us that the core of our own self is not the body, or the mind, but atman or “Self”. Atman is the core of all creatures, their innermost essence. It can only be perceived by direct experience through meditation. It is when we are at the deepest level of our existence.

Brahman is the one underlying substance of the universe, the unchanging “Absolute Being”, the intangible essence of the entire existence. It is the undying and unchanging seed that creates and sustains everything. It is beyond all description and intellectual understanding.

One of the great insights of the Upanishads is that atman and Brahman are made of the same substance. When a person achieves moksha or liberation, atman returns to Brahman, to the source, like a drop of water returning to the ocean. The Upanishads claim that it is an illusion that we are all separate: with this realization we can be freed from ego, from reincarnation and from the suffering we experience during our existence. Moksha, in a sense, means to be reabsorbed into Brahman, into the great World Soul.

The following passage explains in metaphorical terms the idea that atman and Brahman are the same:

As the same fire assumes different shapes

When it consumes objects differing in shape,

So does the one Self take the shape

Of every creature in whom he is present.

(Katha Upanishad II.2.9)

How is moksha achieved? There are many ways according to the Upanishads: Meditation, introspection and also from the knowledge that behind all forms and veils the subjective and objective are one, that we are all part of the Whole. In general, the Upanishads agree on the idea that men are naturally ignorant about the ultimate identity between atman, the self within, and Brahman. One of the goals of meditation is to achieve this identification with Brahman, and abandon the ignorance that arises from the identification with the illusory or quasi-illusory nature of the common sense world.

In the famous Chandogya Upanishad, we find the story of Uddalaka and his son Shvetaketu. At a certain point Shvetaketu went to study the Vedas and returned to his family after twelve years, very proud of what he had learned, maybe even a little arrogant. Uddalaka asks his son if he had gained the wisdom that allows him to hear the unheard, to perceive what is unperceivable, to know the unknown. Shvetaketu has no idea what he is being asked, so his father employs a series of metaphors to enlighten his son:

As the rivers flowing east and west

Merge in the sea and become one with it,

Forgetting they were separate rivers,

So do all creatures lose their separateness

When they merge at last into pure Being.

There is nothing that does not come from him.

Of everything he is the inmost Self.

He is the truth; he is the Self supreme.

You are that Shvetaketu, you are that.

(Chandogya Upanishad IV.10.1-3)


Upanishads principales