The religious caste and sects and religion are nothing to do with the Sage Sankara's Advaitic wisdom.+

Advaitic orthodoxy is a sect.  The sect and religion are nothing to do with Sage  Sankara's Advaitic wisdom. Advaitic orthodoxy is based on the birth entity.  The one which is born, lives, and dies in the world is not the ‘Self’.  

Sage Sankara says the world is merely an illusion Brahman alone is real and Atman is Brahman.

Thus, it proves the world in which birth and death happen is merely an illusion. The Soul, which is present in the form of consciousness, is the cause of the world is real.  The Soul, which is present in the form of consciousness, is the ultimate truth or Brahman.

Orthodoxy is the path of ignorance.  And ignorant worship mechanically performs the prescribed sacrifices without any thought as to why they are doing them.   

That is why Ish Upanishads says:~ such people no wonder they grope in the dark. They are doomed unless someday the truth dawns on them that to save themselves they must seek Self-knowledge.

The Advaitic orthodoxy conduct oriented and tries to prove the truth on the base of scriptural authorities, whereas the ultimate truth is based on the Soul, the innermost ‘Self’. 

The religion, concept of God, and scriptures are a great obstacle to acquiring the  Self-knowledge or Brahma Gnana or Atma Gnana.  The scriptural knowledge fuels the ego. And ego makes one experience the duality as reality.  Duality makes one blind to the truth and makes one accept, the egocentric theories based on the false self as an authority. The ultimate truth has to be proved without the scriptures.

The Advaitic Orthodoxy holds the caste, religious rites, God and Glorifying the Gurus, scriptural studies, virtues, good deeds, and physical conduct as the means to acquire the Self-knowledge or Brahma Gnana or Atma Gnana.

The Advaitic orthodoxy believes in the worship of non-Vedic Gods barred by Vedas.

Remember always: The Soul, the ‘Self is the Infinite God. 

The Soul is the 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 is 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) 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 worshipper 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 Gods. (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) alone exists~ everything is Atman, there exists nothing except Atman. Such a man is extremely rare."

Bhagavad Gita: ~ Brahmano hi pratisthaham ~ Brahman (God) 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 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?”

As per the Ish Upanishad: ~ Those who worship Gods and Goddesses go into deeper darkness because they seek rewards for their worship.

That is why Sage Goudpada says that:~  The merciful Veda teaches karma and Upasana to people of lower and middling intellect, while Jnana is taught to those of higher intellect.

This clearly indicates that religion, which is based on individual conduct, prescribes karma and Upasana to people of lower and middling intellect, therefore religion is for the lower intellect. And wisdom is for those who are capable of inquiring into their own existence. :~Santthosh Kumaar