Yogic Chakras in Raja yoga are based on imagination and fiction.+

Yoga ~ does not qualify you to acquire Self-knowledge or Brahma Gnana or Atma Gnana. People try to see God through yogic samadhi meditation. And this process of yogic samadhi meditation does not help the seeker to get rid of ignorance. Ignorance hides God in truth.

Brih Upanishad:~ page 32-"Yoga does not yield truth or liberation."

Manduka Upanishad:~ Yoga is in the sphere of duality and is unnecessary to one who knows non-duality.

Sage Sankara pointed out that yoga could in no way bring about wisdom, much less Moksha. 

Lord Krishna confesses that the oldest wisdom of India (Advaita wisdom) has been lost: people misinterpret and falsify it today as they did then. It is not yoga but the philosophic truth. But nobody knows it. The teachers of philosophy and leaders of mysticism or religion do not want to inquire into the truth and have no time for it. (Gita –Chap- IV-v.2)

In Gita Chap.IV where Lord Krishna says:~ "This yoga has been lost for ages" the word yoga refers to Gnana yoga, not other yogas: the force of the word this is to point this out.

Lord Krishna describes some of the other yogas but devotes this chapter separately to Gnana Yoga. So one sees even in those ancient days people did not care for Advaita; they wanted religion; hence, Gnana got lost. That is why Krishna calls it "the supreme secret." Krishna points out that yoga must see "Brahman in action."

Gita Chap.IV:~ "He who achieves perfection in Yoga finds the Self in time." This means that after his yoga is finished, he begins the inquiry into ultimate truth, and in due course, this inquiry produces the realization of the universal spirit as the result.

Lord Krishna Says Ch. V:~  “Those who know me 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.

Sage Sankara says: - Yoga is not the means of liberation (page 132-133 - Commentary on Brihadaranyakopanishad.

Yoga can yield only the duality because everything that one can do or practice becomes a vanishing 'known.' It yields relative truth based on imagination, which is true from the physical viewpoint of view, not the non-dual truth, which is the ultimate reality.

In Sutra Bashya and Mandukya:~  The Samadhi and sleep are identical. 

Brihad Upanishad does not advocate Samadhi.

A Gnani imparts Knowledge to others. A Yogi lies in Samadhi like a wooden log so he does not know yogic Samadhi is not wisdom.  Gnani is fully aware of about all things, either permanent or perishable and he has realized both permanent and perishable to be consciousness.  Thus, consciousness alone is real and eternal all else is merely an illusion.

The one,  who realizes Brahman becomes a Gnani.  A Gnani would be there to show the way to freedom from experiencing the duality as reality. A Gnani does not identify himself as a Guru or swami or yogi or sadhu.

Bhagavan Buddha: ~ There are only two mistakes one can make along the road to truth: not going all the way... and not starting.

 

Meher Baba: ~ When reality appears this ignorance which one thinks as reality becomes unreal. 

 

Sage Sankara said:~ Neither by the practice of yoga nor philosophy, nor by good works nor by learning, does liberation come, but only through the realization that Atman and Brahman are one in no other way.~ (1) VivekaChudamani v 56, pg 25

Yogic  Chakras in Raja yoga are based on imagination and fiction. It was noted that there were nervous plexuses and nodules at intervals in the spine and other parts of the body. 

Upon this basis, the yogis started imagining that if the mind concentrated on each one a different mystic result would be obtained. But that is mere fancy. When The Self is formless the question of chakras does not arise. 

It is foolish to practice yoga after one becomes aware of the fact that the Self is not the body but the Self is consciousness. The body-based yogic or mystical theories are not the means for self-realization.

Without having a firm Inner conviction that the self is not the form but the Self is formless Soul, which is present in the form of the consciousness,  it is difficult to acquire Self-knowledge or Brahma Gnana or Atma Gnana.  It is useless to argue from the standpoint of the form as the Self because the Self is not the form but the Self is the Soul or consciousness.

Remember:~

Man and his experience of the universe are the product of ignorance.  Therefore, everyone is ignorant of their true existence. Everyone knows about their birth, life, death, and the universe, but they are unaware of the fact that their experience of birth, life, death, and the universe is merely an illusion from the ultimate standpoint.  

The illusion disappears in deep sleep, death or one gets the awareness of the true self through nondualistic or Advaitic wisdom.  If ignorance were permanent nothing could be known. The pursuit of truth is the removal of ignorance by self-knowledge or Brahma Gnana or Atma Gnana.

All interpretation based on the “ego or the waking entity” leads to a  hallucination.  Scriptural tenets may be accepted as authoritative only after one has shown the reality and proved the truth, for then he can point out that the texts teach the same thing. If one quotes them before having demonstrated the truth, then it is scholasticism or punditry.

There have been so many conflicting belief systems, and so many changes, divisions, and subdivisions of religion, therefore religious truth is individual, not universal.

Only when one meets with suffering and disappointments, then doubts arise about his inherited belief system. Doubts are absolutely necessary to make men inquire. Thus, when man gets doubts then only he begins to question whether his inherited belief system is true or false. 

The pursuit of truth is getting rid of all doubts.  The pursuit of truth begins with doubt.  That is, doubting one’s own self, and one’s own beliefs.:~Santthosh Kumaar