The Advaitic orthodoxy is based on personal Gods whereas Sage Sankara’s Supreme Brahman (God) is impersonal.+

Orthodox people are ignorant fools, because, they regard sacrifices and humanitarian works as the highest, and do not know any higher god in truth. Orthodox people remain in ignorance of the Atman, the real God.

Orthodox people dwelling in darkness, but wise in their own conceit and puffed up with a vain scholarship think their inherited belief as the ultimate truth immersed in following shastras rituals and sacrifices remain in the domain of ignorance. Orthodox people are like blind men led by the blind.

The Upanishads say performers of karma do not know they fall from heaven, misery stricken when the fruit of their karma is exhausted. 

Remember:~ 

Ish Upanishad: ~Those people who have neglected the attainment of Self-knowledge and have thus committed suicide. 10/11/12

The religious orthodox people who have neglected the attainment of Self-knowledge and have thus committed suicide, as it were, are doomed to enter those worlds after death.

This is a condemnation of people who do not try to attain Self-knowledge. They are, in a real sense, committing suicide, for what can be worse than being a slave to sense enjoyment, completely oblivious of the real purpose of life, which is to be one’s own master? 

The Advaitic orthodoxy is based on personal Gods whereas Sage  Sankara’s Supreme Brahman (God) is impersonal, Nirguna (without Gunas or attributes), Nirakara (formless), Nirvisesha (without special characteristics), immutable, eternal, and Akarta (non-agent). God is above all needs and desires. God is always the Witnessing Subject. God can never become an object as God is beyond the reach of the senses. God is non-dual, one without a second. God has no other besides it. God is destitute of difference, either external or internal. God cannot be described because the description implies a distinction. God cannot be distinguished from any other than God. In God, there is not a distinction between substance and attribute. Sat-Chit-Ananda constituted the very essence or Svarupa of God, and not just God's attributes. The Nirguna Brahman of Sage Sankara is impersonal.

Advaitic orthodoxy accepts the experience of birth, life, death, and the world as reality, whereas Sage Sankara says the world is unreal Brahman alone is real.

Thus the experience of birth, life, and death happening within the illusory world is bound to be an illusion.  

Thus,  religion and religious belief and its ritual based on the birth entity are bound to be an illusion. Thus, the seeker has to realize ‘what is that is real and eternal? 

Sage  Sankara: ~ ‘Reality can be realized only with the eye of understanding, not just by a scholar. What the moon is like must be seen with one's own eyes. How can others do it for you?"~Vivekachoodamani   

Advaitic Orthodoxy misinterpreted Sage Sankara and presented only the religious side of his teaching as the highest doctrine. Thus, people are misled.     The orthodoxy is based on rituals mythical Gods and Karma. Advaitic wisdom of Sage  Sankara has nothing to do with Advaitic orthodoxy.  

Let Advaitic wisdom annihilate ignorance (I) and reveal the Soul, the Self God in truth.  Let your ears become deaf to the untruth propagated by the religion as a reality; enable you to realize the truth hidden by ignorance (I).  Let your eyes become blind to the illusion of receiving the Soul as the Self as it is in the midst of the dualistic illusion. 

All the orthodox ideas were rejected by Sage Sankara. There is no need to indulge in rituals, to realize the ultimate truth or Brahman. There is no need to study philosophy, to realize the ultimate truth or Brahman so why indulge in studying philosophy. 

Sage Sankara pokes fun at ascetics and points out that all their austerities do not cause desires to go (Altar Flowers" Page 205, v.2 P.207 v.4) 

Sage Sankara pointed out that those rituals could in no way bring about wisdom, much less moksha. 

Sage  Sankara says the rewards of the rituals are not a matter of direct realization. Advaitic wisdom is based on personal realization. 

The orthodox Advaitin believes that rituals alone would lead one to higher levels of attainment. Further, the deities would reward only those entitled to perform the rituals alone. The entitlement involved caste, creed, and other parameters. 

The scriptural authority and value of rituals are part of the Advaitic orthodoxy, which is meant for ignorant people. 

The Advaitic wisdom of Sage Sankara has nothing to do with religion, caste, rituals, worship, yoga, and other practices. Therefore, an obvious disparity between Sage Sankara‘s path of Gnana and the path of Karma. The Path of Gnana is meant for the advanced seeker of truth and the path of Karma is meant for the ignorant populace. 

Even Sage Sankara appears and tells the orthodox people the path of orthodoxy is the path of ignorance they will not be able to drop their inherited samskara or conditioning, which they think is the only way to reach heaven and reap a happy life in the next life. 

As regards the rituals, Sage  Sankara says, that the person who performs rituals and aspires for rewards will view himself in terms of the caste into which he is born, his age, the stage of his life, his standing in society, etc. In addition, he is required to perform rituals all through his life. However, the Self has none of those attributes or tags. Hence, the person who superimposes all those attributes on the changeless, eternal Self and identifies the ‘Self’ with the body is confusing one for the other; and is, therefore, an ignorant person. The scriptures dealing with rituals, rewards, etc. are therefore addressed to an ignorant person. - (11- Adhyasa Bhashya)

First Mundaka - Chapter 2 (10) - Ignorant fools, regarding sacrifices and humanitarian works as the highest, do not know any higher good. Having enjoyed their reward on the heights of heaven, gained by good works, they still remain in ignorance of the Atman the real God.

As a person one performs rituals throughout his life.  The person who performs rituals and aspires for rewards will view the world in which he exists as a reality. However, the Soul, the Self unborn eternal hidden by the world in which he exists.  From the standpoint of the Soul, the world in which he exists is merely an illusion.

The scriptures dealing with rituals, rewards, etc. are therefore addressed to an ignorant person.

First Mundaka - Chapter 2 (9) - Children, immersed in ignorance in various ways, flatter themselves, saying: We have accomplished life's purpose. Because these performers of karma do not know the Truth owing to their attachment, they fall from heaven, misery-stricken, when the fruit of their work is exhausted.

First Mundaka - Chapter 2 (8) - Fools, dwelling in darkness, but wise in their own conceit and puffed up with vain scholarship, wander about, being afflicted by many ills, like blind men led by the blind.

The number of religious believers is more, but the number of seekers of truth is much less. The religious believer seeks the pleasure of his own devotion, while the seeker's only aim is to realize the truth of his true existence.

A religious believer accepted his belief as the ultimate reality.  A seeker of truth finds his path independently.  Many can become seekers, but only a few can become Gnanis. :~Santthosh Kumaar