Brahman (God in truth) ~ The One Without A Second.+

You and your experience of the world are part of the illusion. The Self is not you but the Self is the Soul, which is present in the form of consciousness.  If the 'Self' is not you, then the question of your body, your ego, your memories and your experience of the world, and your karma is nothing to do with the Soul, the Self. 

The 'Self' is the  Soul, which is present in the form of consciousness.   The Soul, the 'Self', witnesses you and your experience of the world together. 

It is the Soul that has to get rid of the illusion, by realizing you along with the world and the  'Self' are one in essence. That essence is the Soul, which is present in the form of consciousness. 

Thus, you and your experience of the world are made of single stuff, which is the Soul, the 'Self'.  Thus, it is necessary to realize the 'Self' is not within our body (you) but it is hidden within the world in which we exist as its formless substance and the witness.  

Thus, our bodies and our experience of the world are made of the same stuff. Realizing this truth will lead one to Advaitic Self-awareness in the midst of duality. 

The Atman is the Soul. The Soul is self-evident   It is not established by extraneous proofs. It is not possible to deny the soul because it is the very essence of the one who denies it. 

The Soul is the basis of all kinds of knowledge, presuppositions, and proofs. The Soul is the Self. The nature of the Soul is formless and non-dual.  The Soul is present in the form of consciousness.  Consciousness is not an object, as it is invisible, beyond the reach of the physical eyes. Consciousness is the ultimate truth. And the ultimate truth is Brahman. Brahman—The One Without A Second.

Upanishads declare:~ “Neti Neti—not this, not this, not that.” This does not mean that Brahman is a negative concept, or a metaphysical abstraction, or a nonentity, or a void. It is not another. It is all-full, infinite, changeless, self-existent, self-delight, self-knowledge, and self-bliss. It is the essence. It is the essence of the knower and the known. 

Sage Sankara said:~The Brahman is impersonal, without Gunas or attributes (Nirguna), formless (Nirakara), (without special characteristics (Nirvisesha), immutable, eternal, and non-agent (Akarta). It is above all needs and desires. It is always the Witnessing Subject. It can never become an object as it is beyond the reach of the senses. Brahman is non-dual, one without a second. It has no other besides it. It is destitute of difference, either external or internal. Brahman cannot be described because the description implies a distinction. Brahman cannot be distinguished from any other than it. In Brahman, there is not a distinction between substance and attribute.

In Manduka Upanishad  - Brahman and Atman are defined as the same:~ 

सर्वं ह्येतद् ब्रह्मायमात्मा ब्रह्म सोयमात्मा चतुष्पात् / sarvam hyetad brahmaayamaatmaa brahm soyamaatmaa chatushpaat ~ 

Manduka Upanishad, verse-2

Translation:~

sarvam(सर्वम्)- Whole/All/Everything; hi(हि)- Really/Just/Surely/Indeed;etad(एतद्)- This here/This; brahm(ब्रह्म)- Brahm/Brahman;ayam(अयम्)- This/Here; aatmaa(आत्मा)- Atma/Atman; sah(सः)- He;ayam(अयम्)- This/Here; chatus(चतुस्)- Four/Quadruple; paat(पात्)- Step/Foot/Quarter

Fragmented Verse:

सर्वम् हि एतद् ब्रह्म अयम् आत्मा ब्रह्म सः अयम् आत्मा चतुस पात् / sarvam hi etad brahm ayama aatmaa brahm sah ayam aatmaa chatus paat

Simple Meaning:~

All indeed is this Brahman; This Atman is Brahman; He, this Atman has four steps/quarters.

While Brahman lies behind the sum total of the objective universe, some human minds boggle at any attempt to explain it with only the tools provided by reason. Brahman is beyond the senses, beyond the mind, beyond intelligence, beyond imagination. Indeed, the highest idea is that Brahman is beyond both existence and non-existence, transcending and including time, causation, and space, and thus can never be known in the same material sense as one traditionally 'understands' a given concept or object.

Imagine a person who is blind from birth and has not seen anything. Is it possible for us to explain to him the meaning of the color red? Is any amount of thinking or reasoning on his part ever going to make him understand the sensation of the color red? In a similar fashion, the idea of Brahman cannot be explained or understood through material reasoning or any form of human communication. Brahman is like the color red; those who can sense it cannot explain or argue with those who have never sensed it.

The Soul, the ‘Self is the Infinite God.  

The Soul is the innermost Self. God is the Soul, which is present in the form of consciousness. God is the fullness of the consciousness without the illusory division of form, time, and space.  Therefore, there is nothing apart from it. 

God is Self-evident. God is not established by extraneous proofs. It is not possible to deny God because God is the very essence of the one who denies it. God is the basis of all kinds of knowledge, presuppositions, and proofs. God is within the universe in which you exist, the God is without the universe in which you exist.

The Vedas confirm God is Atman (Spirit), the Self.

Yajurveda – chapter- 32:~  God os Supreme or Supreme Spirit has no ‘Pratima’ (idol) or material shape. God cannot be seen directly by anyone. God pervades all beings and all directions. 

Thus, Idolatry does not find any support from the Vedas.

Brihadaranyaka Upanishad: ~ Brahman (God in truth) is in the form of the Athma, and it is indeed Athma itself.

People, who worship the belief of God, are hallucinating that they become one with such God.

Vedas itself says: May ye never accept another God in place of the Atman nor worship other than the Atman? Thus, to know the real God Self-realization is necessary. Self-realization is God-realization. Self-realization itself is real worship.

Rig Veda: ~ The Atman is the cause; Atman is the support of all that exists in this universe. May ye never turn away from the Atman, the Self. May ye never accept another God in place of the Atman nor worship other than the Atman?." (10:48, 5)

How can you worship God? That implies two ~ the worshiper and the worshiped, whereas God is nondual. One can worship his idea of God only or realize his unity with it when he can’t worship it as apart.

When Upanishads and Vedas declare that, “God is in the form of the Athma, and God is indeed Athma itself” then why accept another God in place of the Atman nor worship other than the Atman.

God is the Supreme Being the One eternal homogeneous essence, indivisible consciousness, and intelligence, which is beyond form, time, and space. Which the Sages describe in a variety of ways through diverse words.

Bhagavad Gita: ~ ‘All those whose intelligence has been stolen by material desires, they worship many God s. (7- Verse -20)

Only the path of wisdom leads the seeker of truth on his journey to the ultimate realization of the true nature of the Universal Essence, which is the Soul. The Soul is present in the form of consciousness.

Bhagavad Gita: 7: 19:~ "Such a man who has attained true knowledge, the knowledge of Self, the knowledge of Atman, worships ‘Self’ as~ Atman (God in truth) alone exists~ everything is Atman, there exists nothing except Atman. Such a man is extremely rare."

Bhagavad Gita: ~ Brahmano hi pratisthaham ~ Brahman (God in truth) is considered the all-pervading consciousness, which is the basis of all the animate and inanimate entities and material. (14.27).

When Bhagavad Gita says, God is considered the all-pervading consciousness which is the basis of all the animate and inanimate entities and material then nothing has to be accepted as God other than consciousness.

Lord Krishna says Ch ~V: ~ “Those who know the Self in truth." The last two words (tattvataha) are usually ignored by pundits, but they make all the difference between the ordinary concept of God and the truth about God. 

The dualistic worship of "God” is only for the ignorant populace. The God in truth is only Atman, the innermost Self. In reality, there is no duality, no differentiation. Only Atman exists.

Brihadaranyaka Upanishad IV-13:~ ‘As a mass of salt has neither inside nor outside, but is entirely a mass of taste, thus indeed, has that Self neither inside nor outside but is altogether a mass of Knowledge. Just as a lump of salt has inside as well as outside one and the same saltish taste, not any other taste, so also that Brahman (Consciousness) has inside as well as outside one and the same intelligence. Inside and outside are mental creations only. When the mind melts in silence, ideas of inside and outside vanish. The sages cognize one illimitable, homogeneous mass of consciousness only.

Causality taught in the Upanishads is only to enable us to understand the supreme truth of no-origination. The world is not different from the consciousness and the consciousness is not different from the Soul, the innermost Self, and the Soul is not different from the ultimate truth or Brahman. That the consciousness appears as a diverse world is only an illusion. If it really became diverse then the immortal would become mortal.

The dualists who seek to prove the origination of the unborn, by that very enterprise try to make the immortal, mortal. Ultimate nature can never change - the immortal can never become mortal and vice versa.

Sage Sri, Goudapada quotes from the Upanishads: ~ "There's no plurality here"; "The Soul through its powers appears to be many"; "those who are attached to the creation or production or origination go to utter darkness"; "the unborn is never reborn, for what can produce it?”

In Advaita Vedanta:~ Brahman is without attributes and strictly impersonal. It can be best described as infinite Being, infinite Consciousness, and infinite Bliss. It is pure knowledge itself, similar to a source of infinite radiance. Since the Advaitins regard Brahman to be the Ultimate Truth, so, in comparison to Brahman, every other thing, including the material world, its distinctness, the individuality of the living creatures, and even Ishvara (the Supreme Lord) itself are all untrue. Brahman is the effulgent cause of everything that exists and can possibly exist. Since it is beyond human comprehension, it is without any attributes, for assigning attributes to it would be distorting the true nature of Brahman. Advaitins believe in the existence of both Saguna Brahman and Nirguna Brahman; however, they consider Nirguna Brahman to be the absolute supreme truth. 

Chandogya Upanishad:~  One who meditates upon and realizes the 'Self' discovers that everything in the cosmos-- energy and space, fire and water, name and form, birth and death, mind and will, word and deed, mantram and meditation--all come from the Self.

So, it clearly says the one who meditates upon the 'Self' (consciousness) discovers that everything in the cosmos-- energy and space, fire and water, name and form, birth and death, mind and will, word and deed, mantram and meditation--all come from the Self. Therefore, there is a need to know the fact that, the true self is not physical but the soul in order to realize the fact that:  the cosmos-- energy and space, fire and water, name and form, birth and death, mind and will, word and deed, mantram and meditation--all come from the Self, which is in the form of consciousness. 

Atman is Brahman. Brahman the Absolute is alone real; this waking is unreal, and the three states are non-different from Brahman. :~Santthosh Kumaar