SANKARACAHARAYA 'S CONCEPTS

Status of the world
Adi Shankara says that the world is not real (true), it is an illusion, but this is because of some logical reasons. Let us first analyse Adi Shankara's definition of Truth, and hence why the world is not considered real(true).

• Adi Shankara says that whatever thing remains eternal is true, and whatever is non-eternal is untrue. Since the world is created and destroyed, it is not real (true).
• Truth is the thing which is unchanging. Since the world is changing, it is not real (true).
• Whatever is independent of space and time is real (true), and whatever has space and time in itself is real (true).
• Just as one sees dreams in sleep, he sees a kind of super-dream when he is waking. The world is compared to this conscious dream.
• The world is believed to be a superimposition of the Brahman. Superimposition cannot be real (true).

On the other hand, Adi Shankara claims that the world is not absolutely unreal(false). It appears unreal (false) only when compared to Brahman. In the pragmatic state, the world is completely real—which occurs as long as we are under the influence of Maya. The world cannot be both true and false at the same time; hence Adi Shankara has classified the world as indescribable. The following points suggest that according to Adi Shankara, the world is not false (Adi Shankara himself gave most of the arguments, Sinha, 1993):

• If the world were unreal (false), then with the liberation of the first human being, the world would have been annihilated. However, the world continues to exist even if a human attains liberation.
• Adi Shankara believes in Karma, or good actions. This is a feature of this world. So the world cannot be unreal (false).
• The Supreme Reality Brahman is the basis of this world. The world is like its reflection. Hence the world cannot be totally unreal (false).
• False is something which is ascribed to nonexistent things, like Sky-lotus. The world is a logical thing which is perceived by our senses.

Consider the following logical argument. A pen is placed in front of a mirror. One can see its reflection. To one's eyes, the image of the pen is perceived. Now, what should the image be called? It cannot be true, because it is an image. The truth is the pen. It cannot be false, because it is seen by our eyes.
Īshvara
Īshvara (pronounced [ˈiːʃvərə], literally, the Supreme Lord) — According to Advaita Vedanta, when man tries to know the attributeless Brahman with his mind, under the influence of Maya, Brahman becomes the Lord. Ishvara is Brahman with Maya — the manifested form of Brahman. Adi Shankara uses a metaphor that when the "reflection" of the Cosmic Spirit falls upon the mirror of Maya, it appears as the Ishvara or Supreme Lord. The Ishvara is true only in the pragmatic level. God's actual form in the transcendental level is the Cosmic Spirit.
Ishvara can be described as Saguna Brahman or Brahman with attributes that may be regarded to have a personality with human and Godly attributes. This concept of Ishvara is also used to visualize and worship in anthropomorphic form deities such as Shiva, Vishnu or Devi by the dvaitins which leads to immense confusion in the understanding of a monistic concept of God apart from polytheistic worship of Vishnu, Shiva and Shakti in Hinduism .
Now the question arises as to why the Ishvara created the world. If one assumes that Ishvara creates the world for any incentive, this slanders the wholeness and perfection of Ishvara. For example, if one assumes that Ishvara creates the world for gaining something, it would be against His perfection. If we assume that He creates for compassion, it would be illogical, because the emotion of compassion cannot arise in a blank and void world in the beginning (when only Ishvara existed). So Adi Shankara assumes that Creation is recreation or play of Ishvara. It is His nature, just as it is man's nature to breathe.
The sole proof for Ishvara that Adi Shankara gives is Shruti's mentions of Ishvara, as Ishvara is beyond logic and thinking. This is similar to Kant 's philosophy about Ishvara in which he says that "faith" is the basis of theism. However, Adi Shankara has also given few other logical proofs for Ishvara, but warning us not to completely rely on them:

• The world is a work, an effect, and so must have real cause. This cause must be Ishvara.
• The world has a wonderful unity, coordination and order, so its creator must have been an intelligent being.
• People do good and sinful work and get its fruits, either in this life or after. People themselves cannot be the giver of their fruits, as no one would give himself the fruit of his sin. Also, this giver cannot be an unconscious object. So the giver of the fruits of Karma is Ishvara. See, Karma in Hinduism for more information.

 Status of God

                To think that there is no place for a personal God (Ishvara) in Advaita Vedanta is a misunderstanding of the philosophy. Ishvara is, in an ultimate sense, described as "false" because Brahman appears as Ishvara only due to the curtain of Maya. However, as described earlier, just as the world is true in the pragmatic level, similarly, Ishvara is also pragmatically true. Just as the world is not absolutely false, Ishvara is also not absolutely false. He is the distributor of the fruits of one's Karma.
                         Whenever we talk about Brahman, we are in fact talking about God. God is the highest knowledge theoretically possible. Devotion (Bhakti) will cancel the effects of bad Karma and will bring a person closer to the true knowledge by purifying his mind. Slowly, the difference between the worshipper and the worshipped decreases and upon true knowledge, liberation occurs.

Ātman

 

The soul or the self (Atman) is identical with Brahman. It is not a part of Brahman that ultimately dissolves into Brahman, but the whole Brahman itself. Now the arguers ask how the individual soul, which is limited and one in each body, can be the same as Brahman?   
                  Adi Shankara explains that the Self is not an individual concept. Atman is only one and unique. Indeed Atman alone is {Ekaatma Vaadam}. It is a false concept that there are several Atmans {Anekaatma Vaadam}.
                     Adi Shankara says that just as the same moon appears as several moons on its reflections on the surface of water covered with bubbles, the one Atman appears as multiple atmans in our bodies because of Maya. Atman is self-proven, however, some proofs are discussed—e.g., a person says "I am blind", "I am happy", "I am fat" etc.
                         The common and constant factor, which permeates all these statements is the "I" which is but the Immutable Consciousness. When the blindness, happiness, fatness are inquired and negated, "I" the common factor which, indeed, alone exists in all three states of consciousness and in all three periods of time, shines forth. This proves the existence of Atman, and that Consciousness, Reality and Bliss are its characteristics. Atman, being the silent witness of all the modifications, is free and beyond sin and merit. It does not experience happiness or pain because it is beyond the triad of Experiencer, Experienced and Experiencing. It does not do any Karma because it is Aaptakaama. It is incorporeal and independent.
                                  When the reflection of atman falls on Avidya (ignorance), atman becomes jīva — a living being with a body and senses. Each jiva feels as if he has his own, unique and distinct Atman, called jivatman. The concept of jiva is true only in the pragmatic level. In the transcendental level, only the one Atman, equal to Brahman, is true.
Adi Shankara exposed the relative and thus unreal nature of the objective  world and propounded the truth of the Advaita {One without a second} by analysing the three states of experience of the atman — waking (vaishvanara), dreaming (taijasa), and deep sleep (prajna